The present invention discloses a WeChat platform-based curtain wall GRC three dimensional visual management system and a usage method thereof. The system comprises a user registration and login unit used for registering and logging in, an information recording unit used for recording the information of a GRC board, a two-dimensional code generating unit used for generating two-dimensional codes, a code scanning unit used for scanning the two-dimensional codes, a user authority management unit used for authority management, an acceptance check management unit used for detecting the acceptance check, an installation positioning step by step display unit used for displaying the installation position information of the GRC board and a three dimensional visual and statistics unit used for displaying the construction progress. According to the present invention, a curtain wall GRC construction management acceptance check process operation on a mobile phone, the curtain wall GRC step by step three dimensional visualization and the curtain wall GRC paperless acceptance check are realized, and the information of the curtain wall GRC board is inquired real-timely.