diff --git a/blazar_dashboard/content/hosts/tests.py b/blazar_dashboard/content/hosts/tests.py
index 5c04af2..c4c8894 100644
--- a/blazar_dashboard/content/hosts/tests.py
+++ b/blazar_dashboard/content/hosts/tests.py
@@ -109,6 +109,31 @@ class HostsTests(test.BaseAdminViewTests):
         self.assertMessageCount(success=(len(host_names) + 1))
         self.assertRedirectsNoFollow(res, INDEX_URL)
 
+    @test.create_stubs({blazar_api.client: ('host_list', 'host_create',),
+                        api.nova: ('host_list',)})
+    def test_create_hosts_with_extra_caps(self):
+        blazar_api.client.host_list(IsA(http.HttpRequest)
+                                    ).AndReturn([])
+        api.nova.host_list(IsA(http.HttpRequest)
+                           ).AndReturn(self.novahosts.list())
+        host_names = [h.host_name for h in self.novahosts.list()]
+        for host_name in host_names:
+            blazar_api.client.host_create(
+                IsA(http.HttpRequest),
+                name=host_name,
+                extracap="strong"
+            ).AndReturn([])
+        self.mox.ReplayAll()
+        form_data = {
+            'select_hosts_role_member': host_names,
+            'extra_caps': '{"extracap": "strong"}'
+        }
+
+        res = self.client.post(CREATE_URL, form_data)
+        self.assertNoFormErrors(res)
+        self.assertMessageCount(success=(len(host_names) + 1))
+        self.assertRedirectsNoFollow(res, INDEX_URL)
+
     @test.create_stubs({blazar_api.client: ('host_list', 'host_delete')})
     def test_delete_host(self):
         hosts = self.hosts.list()
diff --git a/blazar_dashboard/content/hosts/workflows.py b/blazar_dashboard/content/hosts/workflows.py
index 1f56724..1bf1635 100644
--- a/blazar_dashboard/content/hosts/workflows.py
+++ b/blazar_dashboard/content/hosts/workflows.py
@@ -67,12 +67,33 @@ class SelectHostsAction(workflows.MembershipAction):
 
 
 class AddExtraCapsAction(workflows.Action):
-    # TODO(hiro-kobayashi): Implement this class
+    extra_caps = forms.CharField(
+        label=_("Extra Capabilities"),
+        required=False,
+        help_text=_('Enter extra capabilities of hosts in JSON'),
+        widget=forms.Textarea(
+            attrs={'rows': 5}),
+        max_length=511)
+
     class Meta(object):
         name = _("Extra Capabilities")
-        help_text = _("Not supported yet.")
         slug = "add_extra_caps"
 
+    def clean(self):
+        cleaned_data = super(AddExtraCapsAction, self).clean()
+        extra_caps = cleaned_data.get('extra_caps')
+
+        if extra_caps:
+            try:
+                extra_caps = eval(extra_caps)
+                cleaned_data['extra_caps'] = extra_caps
+            except (SyntaxError, NameError):
+                raise forms.ValidationError(
+                    _('Extra capabilities must written in JSON')
+                )
+
+        return cleaned_data
+
 
 class SelectHostsStep(workflows.UpdateMembersStep):
     action_class = SelectHostsAction
@@ -92,10 +113,14 @@ class SelectHostsStep(workflows.UpdateMembersStep):
 
 
 class AddExtraCapsStep(workflows.Step):
-    # TODO(hiro-kobayashi): Implement this class
     action_class = AddExtraCapsAction
     help_text = _("Add extra capabilities")
     show_roles = False
+    contributes = ("extra_caps",)
+
+    def contribute(self, data, context):
+        context['extra_caps'] = data.get('extra_caps')
+        return context
 
 
 class CreateHostsWorkflow(workflows.Workflow):
@@ -108,7 +133,11 @@ class CreateHostsWorkflow(workflows.Workflow):
     def handle(self, request, context):
         try:
             for name in context['names']:
-                blazar_api.client.host_create(request, name=name)
+                if context['extra_caps']:
+                    blazar_api.client.host_create(request, name=name,
+                                                  **context['extra_caps'])
+                else:
+                    blazar_api.client.host_create(request, name=name)
                 messages.success(request, _('Host %s was successfully '
                                             'created.') % name)
         except Exception: