Plastic Bag Restriction Policy is a significant environmental event in China in 2008. Despite its great effect on plastic bag consumption，the policy did not fulfill some of its goals such as banning the “unqualified” bags and pushing recycling forward. The difficulties of the policy’s implementation and its unsatisfying consequence are mainly due to the absence of accountability，bad transparency and lack of resource guarantee. However，it is a good opportunity to combine improving the policy with fostering a new type of public policy culture in China.