Abstract: The implementation of the CPC central committee's "comprehensive and strict party" strategy thinking, which takes a lot of power, while the democratic supervision has an irreplaceable importance. In the real world because of a variety of factors, the effect of democratic supervision is not good. That's what we need to take strengthening the party consciousness as the core, take strengthening the self-construction of democratic supervision bodies as basis, take raising awareness of democratic rule of law as the premise, take opening democratic supervision channels as platform, take improving the mechanism for democratic supervision as security, give full play to the role of democratic oversight in advancing the comprehensive and strict administration of the party.