diff --git a/src/main/java/com/yunhai/userhome/entity/Logo.java b/src/main/java/com/yunhai/userhome/entity/Logo.java
new file mode 100644
index 0000000..e627c6d
--- /dev/null
+++ b/src/main/java/com/yunhai/userhome/entity/Logo.java
@@ -0,0 +1,48 @@
+package com.yunhai.userhome.entity;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+import javax.persistence.Column;
+import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
+import javax.persistence.Table;
+import javax.persistence.Transient;
+import javax.persistence.UniqueConstraint;
+import javax.validation.constraints.NotNull;
+
+/**
+ * Logo 实体（镜像 Wallpaper 模式：超管设置系统默认，学校设置自身）。
+ * <p>type：0 系统默认（schId=0） | 1 学校（schId=学校ID）；一校一行，type+sch_id 唯一。</p>
+ */
+@AllArgsConstructor
+@NoArgsConstructor
+@Data
+@Entity
+@Table(name = "logo", uniqueConstraints = {@UniqueConstraint(columnNames = {"type", "sch_id"}, name = "uk_type_sch")})
+public class Logo {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    @NotNull(groups = Update.class)
+    private Integer id;
+
+    /** 0:系统默认 | 1:学校 */
+    private Integer type;
+
+    @Column(name = "sch_id")
+    private Integer schId;
+
+    private Integer userId;
+
+    @Column(name = "logo_url")
+    private String logoUrl;
+
+    @Transient
+    private Boolean isEdit = false;
+
+    public @interface Update {}
+}
diff --git a/src/main/java/com/yunhai/userhome/repository/LogoRepository.java b/src/main/java/com/yunhai/userhome/repository/LogoRepository.java
new file mode 100644
index 0000000..1d89a0e
--- /dev/null
+++ b/src/main/java/com/yunhai/userhome/repository/LogoRepository.java
@@ -0,0 +1,15 @@
+package com.yunhai.userhome.repository;
+
+import com.yunhai.userhome.entity.Logo;
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.data.jpa.repository.JpaSpecificationExecutor;
+
+import java.util.List;
+import java.util.Optional;
+
+public interface LogoRepository extends JpaRepository<Logo, Integer>, JpaSpecificationExecutor<Logo> {
+
+    List<Logo> findBySchIdAndType(Integer schId, Integer type);
+
+    Optional<Logo> findByTypeAndSchId(Integer type, Integer schId);
+}