Abstract: "Challenge Cup" is known as the "Olympic Games" of contemporary college students' scientific and technological innovation, and has become an important carrier to promote quality-oriented education, cultivate innovative and entrepreneurial talents, and improve comprehensive ability. In this paper, AHP-BP neural network method was used to carry out the research on the evaluation system of the sustainable development of the winning projects of the "Challenge Cup" college students' entrepreneurship plan competition, to clarify the key factors affecting the development of the project, effectively evaluate the actual development of the winning projects, and effectively assist the incubator of the winning projects of the college students' entrepreneurship plan competition.

Key words: "Challenge Cup" college students business plan competition, Sustainable development elements of the project, Evaluation system construction, “Three-circle theory”, AHP, BP neural network