The invention discloses a spacecraft three-dimensional process display and production data acquisition system based on a portable terminal. The spacecraft three-dimensional process display and production data acquisition system mainly comprises a manufacturing execution system module, an offline processing module and a practical digital prototype, and the offline processing module comprises an instrument process file and process model association display module, an instrument installation execution record signing module, an instrument state association type photographing module and an instrument state data and picture return module. According to the invention, the problems of associated viewing of process models and process files in a production field and discrete storage and application of photos are solved.