Abstract: To optimize the production process of kiwifruit pulp under ultra-high pressure sterilization conditions, single factor optimization experiments were conducted on three different kinds of pulp production processes, and two processes with better product color and stability were selected. The quality of the samples prepared by these two processes was compared after being stored at 4 ℃ for 40 days. The results showed that under the conditions of preserving the green color of raw kiwifruit pulp to the maximum and improving the stability, the optimal order of these three processes was determined as follows: roll extrusion pulping＞colloid grinding pulping＞high pressure microjet pulping. Compared with the colloid milling process, there was no obvious natural stratification within 30 days during storage at 4 ℃,and the VC content loss was less. The optimized pulping process was identified as follows: the roller extrusion process was used to extrude 1 time. According to the optimal technology, the color of the kiwifruit pulp was mainly green and relatively uniform with VC content of 40～50 mg/100 g.