In order to promote potato staple food,with potato mud as raw material,the process parameters of mashed potato noodles was optimized by response surface method.Selecting three factors of mashed potatoes adding amount,salt added vol-ume and water adding amount for central point combination test,with gumminess and chewiness,shear and tensile force as re-sponse value,the regression equation was established to forecast model,the optimum conditions of mashed potato noodles was determined.The results showed that:with the quality of wheat flour as 100%,mashed potatoes was 35.13%,salt 0.49%,wa-ter 13.40%.The taste of noodles was tough and chewy.