diff --git a/backend/internal/api/team_reg_exec.go b/backend/internal/api/team_reg_exec.go
index 5727472..2ff011b 100644
--- a/backend/internal/api/team_reg_exec.go
+++ b/backend/internal/api/team_reg_exec.go
@@ -369,6 +369,13 @@ func runTeamRegProcess(config TeamRegConfig) {
 				teamRegState.Imported = count
 				teamRegState.mu.Unlock()
 				addTeamRegLog(fmt.Sprintf("[系统] 成功导入 %d 个账号", count))
+
+				// 导入成功后删除 JSON 文件
+				if err := os.Remove(outputFile); err != nil {
+					addTeamRegLog(fmt.Sprintf("[警告] 删除临时文件失败: %v", err))
+				} else {
+					addTeamRegLog(fmt.Sprintf("[系统] 已清理临时文件: %s", filepath.Base(outputFile)))
+				}
 			}
 		}
 	}