Yes, China would definitely want to get a strategic foot in the door in Venezuela for a number of reasons. They could use it as leverage against us some day. Venezuela has crude oil and China needs to import a lot of that. Venezuela would be a perfect base of operation and give China an opportunity to expand in South America. There are plenty of reasons for this… not to mention making money for China.
China will determine the future of Venezuela. There are a number of reasons why Beijing continues to back Maduro's government despite suffering financial losses. Source 7e.