Abstract:Purple sweet potato powder and low gluten flour were used as the main raw material to study the formula and process of purple sweet potato scones through orthogonal experiments on the basis of single factor experiments.Results showed that the optimum formula of purple sweet potato scones were as follows：wheat flour 200 g，purple sweet potato powder 16 g，butter 60 g，egg 60 g，water 60 g，salt 2 g，sugar 50 g，milk powder 12 g，yeast 4 g，baking time for 11 min and baking temperature for 190℃.Under these conditions，the purple sweetpotato scones had attractive color，delicious taste，smooth appearance and the better sensory characteristics.