diff --git a/changelogs/fragments/pacemaker-cluster.yml b/changelogs/fragments/pacemaker-cluster.yml
new file mode 100644
index 0000000000..07e1ff3e04
--- /dev/null
+++ b/changelogs/fragments/pacemaker-cluster.yml
@@ -0,0 +1,3 @@
+bugfixes:
+  - "pacemaker_cluster - actually implement check mode, which the module claims to support. This means that until now the module
+     also did changes in check mode (https://github.com/ansible-collections/community.general/pull/8081)."
diff --git a/plugins/modules/pacemaker_cluster.py b/plugins/modules/pacemaker_cluster.py
index 47b827908f..60d8656ac3 100644
--- a/plugins/modules/pacemaker_cluster.py
+++ b/plugins/modules/pacemaker_cluster.py
@@ -188,6 +188,8 @@ def main():
             if cluster_state == state:
                 module.exit_json(changed=changed, out=cluster_state)
             else:
+                if module.check_mode:
+                    module.exit_json(changed=True)
                 set_cluster(module, state, timeout, force)
                 cluster_state = get_cluster_status(module)
                 if cluster_state == state:
@@ -201,12 +203,16 @@ def main():
                 if node_state[1].strip().lower() == state:
                     module.exit_json(changed=changed, out=cluster_state)
                 else:
+                    if module.check_mode:
+                        module.exit_json(changed=True)
                     # Set cluster status if needed
                     set_cluster(module, state, timeout, force)
                     cluster_state = get_node_status(module, node)
                     module.exit_json(changed=True, out=cluster_state)
 
     if state in ['restart']:
+        if module.check_mode:
+            module.exit_json(changed=True)
         set_cluster(module, 'offline', timeout, force)
         cluster_state = get_cluster_status(module)
         if cluster_state == 'offline':
@@ -220,6 +226,8 @@ def main():
             module.fail_json(msg="Failed during the restart of the cluster, the cluster can't be stopped")
 
     if state in ['cleanup']:
+        if module.check_mode:
+            module.exit_json(changed=True)
         clean_cluster(module, timeout)
         cluster_state = get_cluster_status(module)
         module.exit_json(changed=True,