Well, this may be enough for case of a system smart folder smf:systemConfigSmartFolder but if you plan to define and assign a custom template you should use smf:customConfigSmartFolder. The case is slightly different and more general.
Yes you are right, I want to ask another question to you. When I added smart folder , I can not upload, create a document inside this smart folder as shown below image. It doesn't allow create-upload or any process in smart folder. How can I solve this problem? If you know it, please please help me .
A Smart Folder Template is a kind of configuration file that contains one or more queries to define the nodes in a hierarchical tree, like a logical view. Depending on your queries, you may add content in any place of your site (but not inside the smart folder), and this should be reflected under the smart query tree.