In order to investigate the influence of the precise control and time-varying coupling effect of the process parameters of tape winding on the performance and internal quality of composite with conical structure， this paper conducted optimization research on the key process parameters of tape winding forming for nozzle diffusion section products through design experiments and response surface methodology. The results show when using 50 mm wide carbon cloth tape for winding forming， the winding temperature and pressure were controlled at （60~65）℃/（700~800） N， and the interlayer shear strength can research 21 MPa， with fluctuation of 5% in the dB difference defected by ultrasound. Under these process conditions， there is a significant improvement in the internal quality of the product， with can meet the requirements of engineering and speed increase.