Currently evaluation of Raphanus sativus and its products mainly relied on sensory evaluation.Subjective judgment errors caused by individual judger were hard to avoid.This paper discussed accurately and objectively evaluation of texture characteristics of Raphanus sativus.The influence of compression degree,speed and remaining time on hardness,elasticity,chewiness and resilience of Raphanus sativus in TPA test was optimized by response surface methodology.The results showed that the compression degree had very significant effect on hardness,elasticity,chewiness and resilience(P < 0.0001).Compression speed had significant influence on elasticity and resilience(P <0.05).Remaining time only had significant effect on hardness.When the test parameters were selected,the degree of compression should be given priority.Furthermore,based on the regression analysis,the optimum condition was optimized as follows:compression speed 5.00 mm /s,compression degree 20.21% and remaining time 4.55 s.In the above donditons,texture properties of Raphanus sativus approached to the real value.