Abstract: In view of the problem of DEA-Tobit Two-stage Method,we apply nonparametric regression Techniques in latter stage,rather than econometric methods such as OLS or Tobit related techniques.By relations between government performance and some independent variables.Using Kernel smoothing,we discover there lies negative correlation between government performance and revenue,government income.Nonparametric bivariate density estimation prove such conclusion.Contour map shows unstable relation between deficit and government performance,which corrects previous conclusion.Three-dimensional graph discloses the potential information about centralization degree of government power.However,DEA--Tobit Two-stage Method with nonparametric regression techniques has some problems,such as restriction of sample number,index setup,etc.

Key words: government performance, kernel smoothing, nonparametric regression