Abstract: Aiming at the processing quality problems caused by clamping stress and deformation in the processing of thin-walled and weakly rigid parts, a NC milling processing method based on cemented adhesive clamping is proposed.With this method as the core, cutting forces and fixtures are set up The fixed force database performs real-time analysis and processing pre-judgment to achieve effective control of its processing technology status.Through the application case demonstration of typical parts of aerospace models, the effectiveness of its method is verified.