diff --git a/docs/sql/03_target.sql b/docs/sql/03_target.sql
new file mode 100644
index 0000000..aff4cbb
--- /dev/null
+++ b/docs/sql/03_target.sql
@@ -0,0 +1,18 @@
+-- =====================================================================
+-- 开放接口中心 target 地址表（E11，T-D1a）
+-- 语义：target_code → 提供方 base-url（容器网内直连）。地址解析优先级 DB > yml(yh.gateway.routes)；
+--       DB 无行 / enabled=0 / base_url 空白 三者一律回落 yml，故本表可整表为空、可逐行灰度。
+-- 写入方：projman Apply 派生（E12）+ 存量回填（E13）；网关运行时只读，
+--         改行后 POST /api/internal/routes/refresh 重载即生效（不重启）。
+-- 可重复执行：CREATE TABLE IF NOT EXISTS（不 DROP——生产回填数据不可丢）
+-- =====================================================================
+
+CREATE TABLE IF NOT EXISTS open_api_target (
+  id           BIGINT AUTO_INCREMENT PRIMARY KEY,
+  target_code  VARCHAR(32)  NOT NULL COMMENT '目标应用 ctx（剥掉首斜杠，如 userbase/notice/flowcenter）',
+  base_url     VARCHAR(256) NOT NULL COMMENT '提供方 base-url（如 http://notice-service:8080，不含路径）',
+  enabled      TINYINT      NOT NULL DEFAULT 1,
+  gmt_create   DATETIME     NOT NULL,
+  gmt_modified DATETIME     NOT NULL,
+  UNIQUE KEY uk_target (target_code)
+);
diff --git a/src/main/java/com/yunhai/platform/gateway/entity/OpenApiTarget.java b/src/main/java/com/yunhai/platform/gateway/entity/OpenApiTarget.java
new file mode 100644
index 0000000..6b51cd3
--- /dev/null
+++ b/src/main/java/com/yunhai/platform/gateway/entity/OpenApiTarget.java
@@ -0,0 +1,66 @@
+package com.yunhai.platform.gateway.entity;
+
+import lombok.Getter;
+import lombok.Setter;
+
+import javax.persistence.Column;
+import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
+import javax.persistence.PrePersist;
+import javax.persistence.PreUpdate;
+import javax.persistence.Table;
+import javax.persistence.UniqueConstraint;
+import java.time.LocalDateTime;
+
+/**
+ * target 地址表（E11 T-D1a；DDL 见 docs/sql/03_target.sql，字段与列逐一对齐）。
+ * <p>
+ * 与 yml {@code yh.gateway.routes} 同语义（target → base-url），解析优先级 <b>DB &gt; yml</b>：
+ * 无行 / enabled=0 / base_url 空白一律回落 yml，故派生写入（projman Apply）可逐行灰度。
+ * 网关运行时只读，改行后走 {@code /api/internal/routes/refresh} 重载。
+ */
+@Entity
+@Table(name = "open_api_target", uniqueConstraints = @UniqueConstraint(
+        name = "uk_target", columnNames = {"target_code"}))
+@Getter
+@Setter
+public class OpenApiTarget {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long id;
+
+    @Column(name = "target_code", nullable = false, length = 32)
+    private String targetCode;
+
+    /** 提供方 base-url，不含路径（转发 = base-url + 完整原始 URI，换主机不换路径） */
+    @Column(name = "base_url", nullable = false, length = 256)
+    private String baseUrl;
+
+    @Column(name = "enabled", nullable = false)
+    private boolean enabled = true;
+
+    @Column(name = "gmt_create", nullable = false)
+    private LocalDateTime gmtCreate;
+
+    @Column(name = "gmt_modified", nullable = false)
+    private LocalDateTime gmtModified;
+
+    @PrePersist
+    void preCreate() {
+        LocalDateTime now = LocalDateTime.now();
+        if (gmtCreate == null) {
+            gmtCreate = now;
+        }
+        if (gmtModified == null) {
+            gmtModified = now;
+        }
+    }
+
+    @PreUpdate
+    void preUpdate() {
+        gmtModified = LocalDateTime.now();
+    }
+}
diff --git a/src/main/java/com/yunhai/platform/gateway/repository/OpenApiTargetRepository.java b/src/main/java/com/yunhai/platform/gateway/repository/OpenApiTargetRepository.java
new file mode 100644
index 0000000..be6be95
--- /dev/null
+++ b/src/main/java/com/yunhai/platform/gateway/repository/OpenApiTargetRepository.java
@@ -0,0 +1,11 @@
+package com.yunhai.platform.gateway.repository;
+
+import com.yunhai.platform.gateway.entity.OpenApiTarget;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+import java.util.List;
+
+public interface OpenApiTargetRepository extends JpaRepository<OpenApiTarget, Long> {
+
+    List<OpenApiTarget> findByEnabledTrue();
+}
diff --git a/src/main/java/com/yunhai/platform/gateway/route/RouteRefreshController.java b/src/main/java/com/yunhai/platform/gateway/route/RouteRefreshController.java
index 97f150a..a803ad6 100644
--- a/src/main/java/com/yunhai/platform/gateway/route/RouteRefreshController.java
+++ b/src/main/java/com/yunhai/platform/gateway/route/RouteRefreshController.java
@@ -19,12 +19,12 @@ public class RouteRefreshController {
     @Autowired
     private RouteRegistry routeRegistry;
 
-    /** 清缓存重 load，返回加载数 */
+    /** 清缓存重 load，返回加载数（routes = 路由条目，targets = DB 地址行，E11 同端点重载） */
     @PostMapping("/routes/refresh")
     public Map<String, Object> refresh() {
-        int loaded = routeRegistry.reload();
         Map<String, Object> body = new LinkedHashMap<>();
-        body.put("loaded", loaded);
+        body.put("loaded", routeRegistry.reload());
+        body.put("targets", routeRegistry.reloadTargets());
         return body;
     }
 }
diff --git a/src/main/java/com/yunhai/platform/gateway/route/RouteRegistry.java b/src/main/java/com/yunhai/platform/gateway/route/RouteRegistry.java
index 2159b44..78fcc19 100644
--- a/src/main/java/com/yunhai/platform/gateway/route/RouteRegistry.java
+++ b/src/main/java/com/yunhai/platform/gateway/route/RouteRegistry.java
@@ -3,13 +3,17 @@ package com.yunhai.platform.gateway.route;
 import com.github.benmanes.caffeine.cache.Cache;
 import com.github.benmanes.caffeine.cache.Caffeine;
 import com.yunhai.platform.gateway.entity.OpenApiRoute;
+import com.yunhai.platform.gateway.entity.OpenApiTarget;
 import com.yunhai.platform.gateway.repository.OpenApiRouteRepository;
+import com.yunhai.platform.gateway.repository.OpenApiTargetRepository;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Component;
 
 import javax.annotation.PostConstruct;
 import java.util.ArrayList;
+import java.util.Collections;
 import java.util.HashMap;
+import java.util.LinkedHashMap;
 import java.util.List;
 import java.util.Map;
 
@@ -40,12 +44,22 @@ public class RouteRegistry {
     @Autowired
     private OpenApiRouteRepository routeRepo;
 
+    @Autowired
+    private OpenApiTargetRepository targetRepo;
+
     /** key = targetCode；无 expire（条目 <100，靠手动刷新） */
     private final Cache<String, List<Entry>> cache = Caffeine.newBuilder().build();
 
+    /**
+     * target → base-url 的 DB 快照（E11；整体替换，读侧无锁）。
+     * 只收 enabled 且地址非空白的行——空白行等同无行，由 {@link TargetRouter} 回落 yml。
+     */
+    private volatile Map<String, String> targetBaseUrls = Collections.emptyMap();
+
     @PostConstruct
     public void init() {
         reload();
+        reloadTargets();
     }
 
     /** 全量重 load（@PostConstruct 与 refresh 端点共用）；返回加载数 */
@@ -64,6 +78,27 @@ public class RouteRegistry {
         return count;
     }
 
+    /**
+     * 全量重 load target 地址表（与 {@link #reload()} 同由 refresh 端点触发）；返回装载数。
+     * 表为空（E13 回填前的常态）= 全部 target 走 yml 兜底。
+     */
+    public int reloadTargets() {
+        Map<String, String> fresh = new LinkedHashMap<>();
+        for (OpenApiTarget t : targetRepo.findByEnabledTrue()) {
+            if (!t.isEnabled() || t.getBaseUrl() == null || t.getBaseUrl().trim().isEmpty()) {
+                continue; // 与路由条目同口径双保险：禁用行/空白地址行不覆盖 yml
+            }
+            fresh.put(t.getTargetCode(), t.getBaseUrl().trim());
+        }
+        targetBaseUrls = fresh;
+        return fresh.size();
+    }
+
+    /** target 的 DB 地址；无行（含被过滤的禁用/空白行）返回 null = 回落 yml */
+    public String targetBaseUrl(String targetCode) {
+        return targetBaseUrls.get(targetCode);
+    }
+
     /**
      * 路由判定。method 参与匹配（条目 * 或精确相等）；精确 pattern 优先于 /** 通配。
      */
diff --git a/src/main/java/com/yunhai/platform/gateway/route/TargetRouter.java b/src/main/java/com/yunhai/platform/gateway/route/TargetRouter.java
index 5730d6f..667b6e9 100644
--- a/src/main/java/com/yunhai/platform/gateway/route/TargetRouter.java
+++ b/src/main/java/com/yunhai/platform/gateway/route/TargetRouter.java
@@ -10,7 +10,9 @@ import org.springframework.stereotype.Component;
  * 路由选择、注册表匹配与 canonical 剥离，不参与转发路径改写——提供方自带 context-path，
  * URI 原样送达即天然对齐，签名 canonical 逐字节不变。<br>
  * 网关只做 oapi：未知 target / 单段 URI / 第二段非 oapi（如 /{target}/api/x）一律返回 null
- * = <b>裸 404</b>（{@code /api} 与页面不属于网关职责）。
+ * = <b>裸 404</b>（{@code /api} 与页面不属于网关职责）。<br>
+ * base-url 解析优先级 <b>DB（open_api_target）&gt; yml（yh.gateway.routes）</b>（E11）：
+ * DB 无行、禁用行、空白地址行都按「无行」处理，回落 yml，故 yml 恒为兜底不被绕过。
  */
 @Component
 public class TargetRouter {
@@ -33,11 +35,20 @@ public class TargetRouter {
     @Autowired
     private GatewayProperties properties;
 
+    /** target 地址 DB 快照持有者（E11）；解析优先级 DB &gt; yml */
+    @Autowired
+    private RouteRegistry routeRegistry;
+
     /** 测试/显式装配入口 */
     void setProperties(GatewayProperties properties) {
         this.properties = properties;
     }
 
+    /** 测试/显式装配入口 */
+    void setRouteRegistry(RouteRegistry routeRegistry) {
+        this.routeRegistry = routeRegistry;
+    }
+
     /**
      * @param requestUri   原始请求 URI（未解码，如 /userbase/oapi/x）
      * @param queryString 原始 query（无 '?' 前缀；null = 无）
@@ -64,7 +75,10 @@ public class TargetRouter {
         if (!rest.equals("/oapi") && !rest.startsWith("/oapi/")) {
             return null;
         }
-        String baseUrl = properties.getRoutes().get(target);
+        String baseUrl = routeRegistry.targetBaseUrl(target);
+        if (baseUrl == null) {
+            baseUrl = properties.getRoutes().get(target); // DB 无行（含禁用/空白行）→ yml 兜底
+        }
         if (baseUrl == null || baseUrl.trim().isEmpty()) {
             return null; // 未知 target = 裸 404
         }
diff --git a/src/test/java/com/yunhai/platform/gateway/route/RouteRegistryTest.java b/src/test/java/com/yunhai/platform/gateway/route/RouteRegistryTest.java
index 88a465c..8fdd957 100644
--- a/src/test/java/com/yunhai/platform/gateway/route/RouteRegistryTest.java
+++ b/src/test/java/com/yunhai/platform/gateway/route/RouteRegistryTest.java
@@ -1,7 +1,9 @@
 package com.yunhai.platform.gateway.route;
 
 import com.yunhai.platform.gateway.entity.OpenApiRoute;
+import com.yunhai.platform.gateway.entity.OpenApiTarget;
 import com.yunhai.platform.gateway.repository.OpenApiRouteRepository;
+import com.yunhai.platform.gateway.repository.OpenApiTargetRepository;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 import org.mockito.Mockito;
@@ -109,4 +111,27 @@ class RouteRegistryTest {
         assertThat(spec.authMode).as("refresh 后新增条目生效").isEqualTo("ANON");
         assertThat(spec.cacheTtlSeconds).isEqualTo(120);
     }
+
+    @Test
+    void reloadTargets_装载数只计有效行_空白地址不入快照() {
+        // E11：target 地址快照与路由条目同库不同表，装载口径一致（enabled 行 + 非空地址）
+        OpenApiTargetRepository targetRepo = Mockito.mock(OpenApiTargetRepository.class);
+        when(targetRepo.findByEnabledTrue()).thenReturn(Arrays.asList(
+                targetRow("userbase", "http://userbase-service:8080"),
+                targetRow("notice", "   ")));
+        RouteRegistry reg = new RouteRegistry();
+        ReflectionTestUtils.setField(reg, "targetRepo", targetRepo);
+        assertThat(reg.reloadTargets()).as("空白地址行不装载").isEqualTo(1);
+        assertThat(reg.targetBaseUrl("userbase")).isEqualTo("http://userbase-service:8080");
+        assertThat(reg.targetBaseUrl("notice")).as("空白地址 = 无 DB 行语义，由 TargetRouter 回落 yml").isNull();
+        assertThat(reg.targetBaseUrl("nobody")).as("DB 无此 target").isNull();
+    }
+
+    private static OpenApiTarget targetRow(String code, String baseUrl) {
+        OpenApiTarget t = new OpenApiTarget();
+        t.setTargetCode(code);
+        t.setBaseUrl(baseUrl);
+        t.setEnabled(true);
+        return t;
+    }
 }
diff --git a/src/test/java/com/yunhai/platform/gateway/route/TargetRouterTest.java b/src/test/java/com/yunhai/platform/gateway/route/TargetRouterTest.java
index cad395f..ce178d1 100644
--- a/src/test/java/com/yunhai/platform/gateway/route/TargetRouterTest.java
+++ b/src/test/java/com/yunhai/platform/gateway/route/TargetRouterTest.java
@@ -1,20 +1,33 @@
 package com.yunhai.platform.gateway.route;
 
+import com.yunhai.platform.gateway.entity.OpenApiTarget;
+import com.yunhai.platform.gateway.repository.OpenApiTargetRepository;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
+import org.mockito.Mockito;
+import org.springframework.test.util.ReflectionTestUtils;
 
+import java.util.ArrayList;
 import java.util.LinkedHashMap;
+import java.util.List;
 import java.util.Map;
 
 import static org.assertj.core.api.Assertions.assertThat;
+import static org.mockito.Mockito.when;
 
 /**
  * TargetRouter 用例（T0.12 TDD）：已知 target forwardUrl 逐字符断言（换主机不换路径）、
  * 未知 target / 单段 / 非 oapi 第二段一律裸 404（null）、base-url 尾斜杠归一化。
+ * <p>
+ * E11 追加 DB&gt;yml 四例：DB 有行覆盖 yml、DB 无行回落 yml、enabled=0 回落 yml、
+ * refresh 后新增行生效。target 快照经真实 {@link RouteRegistry}（mock repository）走，
+ * 不 stub 解析逻辑本身。
  */
 class TargetRouterTest {
 
     private TargetRouter router;
+    private RouteRegistry registry;
+    private List<OpenApiTarget> targetRows;
 
     @BeforeEach
     void setUp() {
@@ -25,6 +38,26 @@ class TargetRouterTest {
         routes.put("notice", "http://notice-service:8080/");
         props.setRoutes(routes);
         router.setProperties(props);
+
+        targetRows = new ArrayList<>();
+        OpenApiTargetRepository targetRepo = Mockito.mock(OpenApiTargetRepository.class);
+        when(targetRepo.findByEnabledTrue()).thenReturn(targetRows);
+        registry = new RouteRegistry();
+        ReflectionTestUtils.setField(registry, "targetRepo", targetRepo);
+        router.setRouteRegistry(registry);
+    }
+
+    private static OpenApiTarget target(String code, String baseUrl, boolean enabled) {
+        OpenApiTarget t = new OpenApiTarget();
+        t.setTargetCode(code);
+        t.setBaseUrl(baseUrl);
+        t.setEnabled(enabled);
+        return t;
+    }
+
+    /** 模拟 refresh 端点：重载 target 表快照 */
+    private void refreshTargets() {
+        registry.reloadTargets();
     }
 
     @Test
@@ -76,4 +109,41 @@ class TargetRouterTest {
         assertThat(r.forwardUrl).isEqualTo("http://userbase-service:8080/userbase/oapi");
         assertThat(r.pathAfterStrip).isEqualTo("/oapi");
     }
+
+    @Test
+    void DB有行_用DB地址覆盖yml() {
+        targetRows.add(target("userbase", "http://10.0.0.9:9999", true));
+        refreshTargets();
+        TargetRouter.Routing r = router.route("/userbase/oapi/x", "a=1");
+        assertThat(r.forwardUrl).as("DB 行优先于 yml 同名 target")
+                .isEqualTo("http://10.0.0.9:9999/userbase/oapi/x?a=1");
+    }
+
+    @Test
+    void DB无行_回落yml() {
+        refreshTargets();
+        TargetRouter.Routing r = router.route("/userbase/oapi/x", null);
+        assertThat(r.forwardUrl).isEqualTo("http://userbase-service:8080/userbase/oapi/x");
+    }
+
+    @Test
+    void DB禁用行_回落yml() {
+        // repo 契约按 enabled=true 过滤；注册表再滤一层（与 RouteRegistry 同口径双保险）
+        targetRows.add(target("userbase", "http://10.0.0.9:9999", false));
+        refreshTargets();
+        TargetRouter.Routing r = router.route("/userbase/oapi/x", null);
+        assertThat(r.forwardUrl).as("enabled=0 行不参与解析").isEqualTo("http://userbase-service:8080/userbase/oapi/x");
+    }
+
+    @Test
+    void DB行只在解析后新增时可见_未refresh不生效() {
+        refreshTargets();
+        targetRows.add(target("flowcenter", "http://flow-center-service:8080", true));
+        assertThat(router.route("/flowcenter/oapi/x", null))
+                .as("快照未 refresh 前 DB 新行不生效").isNull();
+        refreshTargets();
+        TargetRouter.Routing r = router.route("/flowcenter/oapi/x", null);
+        assertThat(r).as("refresh 后 DB 新增 target 生效（yml 无此 target）").isNotNull();
+        assertThat(r.forwardUrl).isEqualTo("http://flow-center-service:8080/flowcenter/oapi/x");
+    }
 }
diff --git a/src/test/resources/application-test.yml b/src/test/resources/application-test.yml
index 16f0a59..9a316e7 100644
--- a/src/test/resources/application-test.yml
+++ b/src/test/resources/application-test.yml
@@ -6,9 +6,11 @@ spring:
     password:
   sql:
     init:
-      # 直接跑交付 DDL（docs/sql/01_schema.sql）——round-trip 钉死「DDL ↔ 实体」一致
+      # 直接跑交付 DDL（docs/sql/01_schema.sql + 03_target.sql）——round-trip 钉死「DDL ↔ 实体」一致
       mode: always
-      schema-locations: file:docs/sql/01_schema.sql
+      schema-locations:
+        - file:docs/sql/01_schema.sql
+        - file:docs/sql/03_target.sql
   jpa:
     hibernate:
       ddl-auto: none