Hello Kimly Nguyen,
The platform unfortunately does not have an option for bulk movement of articles. If you're looking to move most if not all of the wiki articles in a channel, I would recommend moving the wiki channel over to the desired location. You can then rename the channel, and change the URL identifier for that channel. If not then the option would be to move the content one at a time. Since the previous location might be empty, you could then replace it with a new wiki channel.
We have a product request in with our team (PROD-I-1256), and that is to look into the possibility of adding such feature.