Unless your laptop contains corporate or government secrets that would make you a particular target, there's no reason that you'd need to take any more precautions in China than at home. If one of these scenarios does apply to you, you should be asking the proper group within your organisation about the necessary precautions to ensure you are in compliance.

Using business centres or internet cafés is more dangerous, as you can never be certain if the computer you're using has a keylogger or other spyware installed that's stealing your passwords and data (this applies everywhere, of course, not just China).