Abstract: Since the founding of the Communist Party of China (CPC) one hundred years ago, it has always attached great importance to the issue of inner-party supervision. The party constitution is not only the fundamental law of the party, but also the fundamental principle to adhere to in strengthening the supervision within the party.An important aspect of the party's attention to inner-party supervision is reflected in the provisions and amendments of the party constitution to inner-party supervision. From the first CPC National Congress program to the 19th National Congress constitution, the provisions on party supervision, has experienced four stages: initial formation,promotion and retrogression, development and perfection, and the latest deployment. Through the historical investigation of the relevant contents of the party constitution on the supervision within the party, this paper summarizes and studies its experience and enlightenment, which is of great significance to further strengthening the supervision within the party and promoting the comprehensive and strict governance of the party under the new situation.

Key words: Communist Party of China, inner-party supervision, Party Constitution, evolution, enlightenment