diff --git a/backend/controller/agent.go b/backend/controller/agent.go
index 615e307..8970506 100644
--- a/backend/controller/agent.go
+++ b/backend/controller/agent.go
@@ -4,6 +4,7 @@ import (
 	"context"
 	"encoding/json"
 	"fmt"
+	"log"
 	"math"
 	"net/http"
 	"sort"
@@ -289,7 +290,9 @@ func (h *AgentHandler) GetLatestReports(c *gin.Context) {
 	threeMinAgo := time.Now().UTC().Add(-3 * time.Minute)
 	// 以 servers 表为主，LEFT JOIN 最近 3 分钟内的 Agent 上报
 	// 未装 Agent 的主机也会显示（agent_status='not_installed'），打破"不显示→无法安装"的循环
-	h.db.Raw(`
+	// 必须检查错误：此前未校验导致 asset_regions 表名错误被静默吞掉，
+	// 接口稳定返回空数组，表现为"资产有主机、大屏没主机"却无任何报错。 // Logan.Li
+	if err := h.db.Raw(`
 		SELECT
 			s.id as server_id,
 			s.hostname,
@@ -330,9 +333,14 @@ func (h *AgentHandler) GetLatestReports(c *gin.Context) {
 				GROUP BY hostname
 			)
 		) a ON a.hostname = s.hostname
-		LEFT JOIN asset_regions r ON r.id = s.region_id
+		LEFT JOIN asset_cloud_regions r ON r.id = s.region_id
 		ORDER BY a.report_time DESC, s.id ASC
-	`, threeMinAgo).Scan(&results)
+	`, threeMinAgo).Scan(&results).Error; err != nil {
+		log.Printf("[GetLatestReports] 查询主机最新上报失败: %v", err)
+		c.JSON(http.StatusInternalServerError, model.Response{
+			Code: 500, Message: "查询主机列表失败: " + err.Error()})
+		return
+	}
 
 	if results == nil {
 		results = []model.AgentLatestResponse{}
diff --git a/backend/controller/agent_report_test.go b/backend/controller/agent_report_test.go
index a3a5793..8143a5d 100644
--- a/backend/controller/agent_report_test.go
+++ b/backend/controller/agent_report_test.go
@@ -135,9 +135,8 @@ func TestGetLatestReportsUsesUTCTimeBoundary(t *testing.T) {
 	if err := db.AutoMigrate(&model.Server{}, &model.AgentReport{}); err != nil {
 		t.Fatalf("迁移测试表失败: %v", err)
 	}
-	if err := db.Exec("CREATE TABLE asset_regions (id INTEGER PRIMARY KEY, name TEXT)").Error; err != nil {
-		t.Fatalf("创建区域测试表失败: %v", err)
-	}
+	// asset_cloud_regions 由上面的 AutoMigrate(&model.Server{}) 级联建立，
+	// 无需手工建表；此前手工建 asset_regions 反而掩盖了生产侧同名的错误 join。 // Logan.Li
 
 	server := model.Server{
 		Hostname:     "c-redis-cluster-3",