Abstract: Maker is an important driving force for the innovation and development of the third industrial revolution. The study of maker capital based on the formation of maker is of great significance to the innovation and development of society. Based on the qualitative study of 66 makers' open-ended questionnaires, this paper constructs the structure dimension of maker capital, and further revises the scale of maker capital through 157 data structure exploration and reliability and validity test. The results show that maker capital is a second-order four factor structure including creativity, personality, knowledge experience and resource integration, and its scale has good reliability and validity. The research enriches and expands the direction of capital theory and maker research, helps to optimize the management performance of maker space in China, and promotes the steady development of China's "mass entrepreneurship and innovation" strategy.