diff --git a/kernel/model/file.go b/kernel/model/file.go
index 7fb9462e7..75d455d53 100644
--- a/kernel/model/file.go
+++ b/kernel/model/file.go
@@ -323,6 +323,11 @@ func ListDocTree(boxID, listPath string, sortMode int, flashcard, showHidden boo
 			}
 
 			continue
+		} else {
+			if strings.HasSuffix(file.name, ".sy") && !ast.IsNodeIDPattern(strings.TrimSuffix(file.name, ".sy")) {
+				// 不以块 ID 命名的 .sy 文件不应该被加载到思源中 https://github.com/siyuan-note/siyuan/issues/16089
+				continue
+			}
 		}
 
 		subFolder := filepath.Join(boxLocalPath, strings.TrimSuffix(file.path, ".sy"))
diff --git a/kernel/model/index.go b/kernel/model/index.go
index 7be4db96d..f937dbb9b 100644
--- a/kernel/model/index.go
+++ b/kernel/model/index.go
@@ -201,6 +201,11 @@ func indexBox(boxID string) {
 			continue
 		}
 
+		if !ast.IsNodeIDPattern(strings.TrimSuffix(file.name, ".sy")) {
+			// 不以块 ID 命名的 .sy 文件不应该被加载到思源中 https://github.com/siyuan-note/siyuan/issues/16089
+			continue
+		}
+
 		waitGroup.Add(1)
 		invokeErr := p.Invoke(file)
 		if nil != invokeErr {