u can but ur parents (in laws whatever) might not be approved. (u can not say let them come to babysite your child/wife, it is considered as work and a visitor has no right to work here).
http://www.canada.org.cn/beijing/ch/home/default.htm
Look at this website.
It is quite possible if your parent have the approval to make sure the officer that they will come back after their visit, no matter if you have a job or not here. The approval might be your parent are still working or a good financial condition, such as good deposit in Bank.