diff --git a/yudao-module-im/src/main/java/cn/iocoder/yudao/module/im/controller/admin/group/ImGroupMemberController.java b/yudao-module-im/src/main/java/cn/iocoder/yudao/module/im/controller/admin/group/ImGroupMemberController.java
index c967166..22d879d 100644
--- a/yudao-module-im/src/main/java/cn/iocoder/yudao/module/im/controller/admin/group/ImGroupMemberController.java
+++ b/yudao-module-im/src/main/java/cn/iocoder/yudao/module/im/controller/admin/group/ImGroupMemberController.java
@@ -13,6 +13,7 @@ import cn.iocoder.yudao.module.system.api.user.AdminUserApi;
 import cn.iocoder.yudao.module.system.api.user.dto.AdminUserRespDTO;
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
+import io.swagger.v3.oas.annotations.Parameters;
 import io.swagger.v3.oas.annotations.tags.Tag;
 import jakarta.annotation.Resource;
 import jakarta.validation.Valid;
@@ -51,11 +52,25 @@ public class ImGroupMemberController {
 
     @GetMapping("/get")
     @Operation(summary = "获得群成员")
-    @Parameter(name = "id", description = "编号", required = true, example = "1024")
+    @Parameters({
+            @Parameter(name = "id", description = "编号（与 groupId + userId 二选一）", example = "1024"),
+            @Parameter(name = "groupId", description = "群编号（与 userId 配合查）", example = "1"),
+            @Parameter(name = "userId", description = "用户编号（与 groupId 配合查）", example = "100")
+    })
     @PreAuthorize("@ss.hasPermission('im:group-member:query')")
-    public CommonResult<ImGroupMemberRespVO> getGroupMember(@RequestParam("id") Long id) {
-        ImGroupMemberDO groupMember = groupMemberService.getGroupMember(id);
-        return success(BeanUtils.toBean(groupMember, ImGroupMemberRespVO.class));
+    public CommonResult<ImGroupMemberRespVO> getGroupMember(@RequestParam(value = "id", required = false) Long id,
+                                                            @RequestParam(value = "groupId", required = false) Long groupId,
+                                                            @RequestParam(value = "userId", required = false) Long userId) {
+        ImGroupMemberDO member;
+        if (id != null) {
+            member = groupMemberService.getGroupMember(id);
+        } else if (groupId != null && userId != null) {
+            member = groupMemberService.getGroupMember(groupId, userId);
+        } else {
+            // 避免 selectByGroupIdAndUserId 收到 null 参数走全表扫 / 抛 SQL 异常
+            throw new IllegalArgumentException("参数缺失：需传 id 或 (groupId, userId)");
+        }
+        return success(BeanUtils.toBean(member, ImGroupMemberRespVO.class));
     }
 
     @GetMapping("/list")
@@ -67,8 +82,8 @@ public class ImGroupMemberController {
         List<ImGroupMemberDO> members = groupMemberService.getGroupMemberListByGroupId(groupId);
         // 1.2 校验当前登录用户是否为群的有效成员，非成员不可查看
         Long loginUserId = getLoginUserId();
-        if (CollUtil.findOne(members, m -> loginUserId.equals(m.getUserId())
-                && CommonStatusEnum.ENABLE.getStatus().equals(m.getStatus())) == null) {
+        if (CollUtil.findOne(members, member -> loginUserId.equals(member.getUserId())
+                && CommonStatusEnum.ENABLE.getStatus().equals(member.getStatus())) == null) {
             throw exception(GROUP_MEMBER_NOT_IN_GROUP);
         }
 
diff --git a/yudao-module-im/src/main/java/cn/iocoder/yudao/module/im/controller/admin/manager/group/vo/ImGroupManagerBanReqVO.java b/yudao-module-im/src/main/java/cn/iocoder/yudao/module/im/controller/admin/manager/group/vo/ImGroupManagerBanReqVO.java
new file mode 100644
index 0000000..a4fb819
--- /dev/null
+++ b/yudao-module-im/src/main/java/cn/iocoder/yudao/module/im/controller/admin/manager/group/vo/ImGroupManagerBanReqVO.java
@@ -0,0 +1,22 @@
+package cn.iocoder.yudao.module.im.controller.admin.manager.group.vo;
+
+import io.swagger.v3.oas.annotations.media.Schema;
+import jakarta.validation.constraints.NotBlank;
+import jakarta.validation.constraints.NotNull;
+import jakarta.validation.constraints.Size;
+import lombok.Data;
+
+@Schema(description = "管理后台 - IM 群聊封禁 Request VO")
+@Data
+public class ImGroupManagerBanReqVO {
+
+    @Schema(description = "群编号", requiredMode = Schema.RequiredMode.REQUIRED, example = "1024")
+    @NotNull(message = "群编号不能为空")
+    private Long id;
+
+    @Schema(description = "封禁原因", requiredMode = Schema.RequiredMode.REQUIRED, example = "违规内容")
+    @NotBlank(message = "封禁原因不能为空")
+    @Size(max = 200, message = "封禁原因长度不能超过 200")
+    private String reason;
+
+}
diff --git a/yudao-module-im/src/main/java/cn/iocoder/yudao/module/im/controller/admin/manager/group/vo/ImGroupManagerPageReqVO.java b/yudao-module-im/src/main/java/cn/iocoder/yudao/module/im/controller/admin/manager/group/vo/ImGroupManagerPageReqVO.java
new file mode 100644
index 0000000..1efdc15
--- /dev/null
+++ b/yudao-module-im/src/main/java/cn/iocoder/yudao/module/im/controller/admin/manager/group/vo/ImGroupManagerPageReqVO.java
@@ -0,0 +1,35 @@
+package cn.iocoder.yudao.module.im.controller.admin.manager.group.vo;
+
+import cn.iocoder.yudao.framework.common.pojo.PageParam;
+import io.swagger.v3.oas.annotations.media.Schema;
+import lombok.Data;
+import lombok.EqualsAndHashCode;
+import org.springframework.format.annotation.DateTimeFormat;
+
+import java.time.LocalDateTime;
+
+import static cn.iocoder.yudao.framework.common.util.date.DateUtils.FORMAT_YEAR_MONTH_DAY_HOUR_MINUTE_SECOND;
+
+@Schema(description = "管理后台 - IM 群聊分页 Request VO")
+@Data
+@EqualsAndHashCode(callSuper = true)
+public class ImGroupManagerPageReqVO extends PageParam {
+
+    @Schema(description = "群名称，模糊匹配", example = "技术交流群")
+    private String name;
+
+    @Schema(description = "群主用户编号", example = "1024")
+    private Long ownerUserId;
+
+    @Schema(description = "群状态，参见 CommonStatusEnum 枚举类（0 正常 / 1 已解散）", example = "0")
+    private Integer status;
+
+    @Schema(description = "是否封禁", example = "false")
+    private Boolean banned;
+
+    // TODO DONE @AI：这个不太对，参考别的模块
+    @Schema(description = "创建时间", example = "[2026-04-01 00:00:00, 2026-04-30 23:59:59]")
+    @DateTimeFormat(pattern = FORMAT_YEAR_MONTH_DAY_HOUR_MINUTE_SECOND)
+    private LocalDateTime[] createTime;
+
+}
diff --git a/yudao-module-im/src/main/java/cn/iocoder/yudao/module/im/controller/admin/manager/group/vo/ImGroupManagerRespVO.java b/yudao-module-im/src/main/java/cn/iocoder/yudao/module/im/controller/admin/manager/group/vo/ImGroupManagerRespVO.java
new file mode 100644
index 0000000..22649fd
--- /dev/null
+++ b/yudao-module-im/src/main/java/cn/iocoder/yudao/module/im/controller/admin/manager/group/vo/ImGroupManagerRespVO.java
@@ -0,0 +1,51 @@
+package cn.iocoder.yudao.module.im.controller.admin.manager.group.vo;
+
+import io.swagger.v3.oas.annotations.media.Schema;
+import lombok.Data;
+
+import java.time.LocalDateTime;
+
+@Schema(description = "管理后台 - IM 群聊 Response VO")
+@Data
+public class ImGroupManagerRespVO {
+
+    @Schema(description = "群编号", requiredMode = Schema.RequiredMode.REQUIRED, example = "1024")
+    private Long id;
+
+    @Schema(description = "群名称", requiredMode = Schema.RequiredMode.REQUIRED, example = "技术交流群")
+    private String name;
+
+    @Schema(description = "群头像")
+    private String avatar;
+
+    @Schema(description = "群公告")
+    private String notice;
+
+    @Schema(description = "群主用户编号", requiredMode = Schema.RequiredMode.REQUIRED, example = "1024")
+    private Long ownerUserId;
+
+    @Schema(description = "群主昵称", example = "张三")
+    private String ownerNickname;
+
+    @Schema(description = "群成员数量", requiredMode = Schema.RequiredMode.REQUIRED, example = "12")
+    private Integer memberCount;
+
+    @Schema(description = "群状态", requiredMode = Schema.RequiredMode.REQUIRED, example = "0")
+    private Integer status; // 参见 CommonStatusEnum 枚举类
+
+    @Schema(description = "解散时间")
+    private LocalDateTime dissolvedTime;
+
+    @Schema(description = "是否封禁", requiredMode = Schema.RequiredMode.REQUIRED, example = "false")
+    private Boolean banned;
+
+    @Schema(description = "封禁原因")
+    private String bannedReason;
+
+    @Schema(description = "封禁时间")
+    private LocalDateTime bannedTime;
+
+    @Schema(description = "创建时间", requiredMode = Schema.RequiredMode.REQUIRED)
+    private LocalDateTime createTime;
+
+}
diff --git a/yudao-module-im/src/main/java/cn/iocoder/yudao/module/im/controller/admin/manager/group/vo/member/ImGroupMemberManagerRespVO.java b/yudao-module-im/src/main/java/cn/iocoder/yudao/module/im/controller/admin/manager/group/vo/member/ImGroupMemberManagerRespVO.java
new file mode 100644
index 0000000..3c93ca2
--- /dev/null
+++ b/yudao-module-im/src/main/java/cn/iocoder/yudao/module/im/controller/admin/manager/group/vo/member/ImGroupMemberManagerRespVO.java
@@ -0,0 +1,24 @@
+package cn.iocoder.yudao.module.im.controller.admin.manager.group.vo.member;
+
+import io.swagger.v3.oas.annotations.media.Schema;
+import lombok.Data;
+
+import java.time.LocalDateTime;
+
+@Schema(description = "管理后台 - IM 群成员 Response VO")
+@Data
+public class ImGroupMemberManagerRespVO {
+
+    @Schema(description = "用户编号", requiredMode = Schema.RequiredMode.REQUIRED, example = "1024")
+    private Long userId;
+
+    @Schema(description = "用户昵称", example = "张三")
+    private String nickname;
+
+    @Schema(description = "用户头像")
+    private String avatar;
+
+    @Schema(description = "入群时间")
+    private LocalDateTime joinTime;
+
+}