diff --git a/monasca_tempest_tests/tests/api/test_alarms_count.py b/monasca_tempest_tests/tests/api/test_alarms_count.py
index 77d2edf..ac2de33 100644
--- a/monasca_tempest_tests/tests/api/test_alarms_count.py
+++ b/monasca_tempest_tests/tests/api/test_alarms_count.py
@@ -276,6 +276,16 @@ class TestAlarmsCount(base.BaseMonascaTest):
     def test_filter_multiple_dimensions(self):
         self.run_count_test("?metric_dimensions=hostname:test_1,unique:1")
 
+    # test with multiple metric dimensions values
+    @decorators.attr(type='gate')
+    def test_filter_multiple_dimensions_values_1(self):
+        self.run_count_test("?metric_dimensions=hostname:test_1|test_2,unique:1")
+
+    # test with multiple metric dimensions values (order should not matter)
+    @decorators.attr(type='gate')
+    def test_filter_multiple_dimensions_values_2(self):
+        self.run_count_test("?metric_dimensions=hostname:test_2|test_1,unique:1")
+
     # test with filter and group_by parameters
     @decorators.attr(type='gate')
     def test_filter_and_group_by_params(self):
diff --git a/releasenotes/notes/story-2005311-bc67654cb58c9562.yaml b/releasenotes/notes/story-2005311-bc67654cb58c9562.yaml
new file mode 100644
index 0000000..aa40400
--- /dev/null
+++ b/releasenotes/notes/story-2005311-bc67654cb58c9562.yaml
@@ -0,0 +1,5 @@
+---
+other:
+  - |
+    Update alarms count tests to test a query string with multiple
+    metric_dimension values.