[Purpose/significance] In the “Internet plus” era, the credit evaluation problem of C2C e-commerce is increasingly prominent. It has practical significance to make a research on the development plight of C2C e-commerce credit evaluation system, and to explore the way to break through. [Method/process] Starting from the credit evaluation, this paper demonstrates the importance of the credit evaluation for e-commerce participants, analyzes the dilemma of the existing C2C e-commerce credit evaluation system, and explores the way to break out of the encirclement——constructing the third-party credit evaluation system. [Result/conclusion] It puts forward the construction principle and strategies, which will be carried out from government leading to market leading.