diff --git a/0004-fixbug-wrong-label-for-dbscan.patch b/0004-fixbug-wrong-label-for-dbscan.patch
new file mode 100644
index 0000000..c973277
--- /dev/null
+++ b/0004-fixbug-wrong-label-for-dbscan.patch
@@ -0,0 +1,25 @@
+From e5850e2df3918b17d029f796e71825bec0dcf0ed Mon Sep 17 00:00:00 2001
+From: huangbin <huangbin58@huawei.com>
+Date: Thu, 21 Nov 2024 18:29:56 +0800
+Subject: [PATCH] fixbug wrong label for dbscan
+
+---
+ .../slow_node_algs/space_comp_detector/sliding_window_dbscan.py | 2 ++
+ 1 file changed, 2 insertions(+)
+
+diff --git a/anteater/model/algorithms/slow_node_algs/space_comp_detector/sliding_window_dbscan.py b/anteater/model/algorithms/slow_node_algs/space_comp_detector/sliding_window_dbscan.py
+index cccae33..0bace48 100644
+--- a/anteater/model/algorithms/slow_node_algs/space_comp_detector/sliding_window_dbscan.py
++++ b/anteater/model/algorithms/slow_node_algs/space_comp_detector/sliding_window_dbscan.py
+@@ -109,6 +109,8 @@ class SlidingWindowDBSCAN():
+         labels = dbscan.fit_predict(sim_scores)
+         logger.info(f"dnscan labels: {labels}")
+         label_counts = Counter(labels)
++        if -1 in label_counts:
++            label_counts.pop(-1)
+         # 找到样本数量最多的类别
+         most_common_label, _ = label_counts.most_common(1)[0]
+         new_labels = np.where(labels == most_common_label, 0, 1)
+-- 
+2.43.0
+
diff --git a/gala-anteater.spec b/gala-anteater.spec
index fe637df..2e7deb8 100644
--- a/gala-anteater.spec
+++ b/gala-anteater.spec
@@ -2,7 +2,7 @@
 
 Name:            gala-anteater
 Version:         1.2.1
-Release:         4
+Release:         5
 Summary:         A time-series anomaly detection platform for operating system.
 License:         MulanPSL2
 URL:             https://gitee.com/openeuler/gala-anteater
@@ -14,6 +14,7 @@ Requires:        python3-gala-anteater = %{version}-%{release}
 patch0:          0001-add-new-feature-slow-node-detection.patch
 patch1:		 0002-configure-group-in-json.patch
 patch2:          0003-remove-unuse-code.patch
+patch3:          0004-fixbug-wrong-label-for-dbscan.patch
 
 %description
 Abnormal detection module for A-Ops project
@@ -81,6 +82,9 @@ fi
 
 
 %changelog
+* Thu Nov 21 2024 huangbin <huangbin58@huawei.com> - 1.2.1-5
+- fixbug with wrong label in dbscan.
+
 * Mon Nov 11 2024 huangbin <huangbin58@huawei.com> - 1.2.1-4
 - solve conflict.