preriode of passport for traveling in beijing,CHINA

my pasport expire by 10 feb 2014. I will be travel to beijing from jakarta on 9 august until 14 august 2013. my periode passport if count in my travel is less about 4 days. Am I break the rule ? because from 14 augts 2013 to 10 feb 2014 my expire date is NOT EXACTLY 6 MONTH but less 4 days. if I buy the tiket now that I had booked with my no passport;expire 10 feb 2013 is that ok ? thank you