Abstract: Based on 5 cities and 391 pig farmers爷survey data in Sichuan province, the direction and degree of the impact factors of the farmers爷willingness to harmless disposal for pig manure were analyzed by applying the theory of planned behavior (TPB) theoretical framework, the factor analysis and regression of binary logistic regression model. The results showed that the effects of features including farmer爷s age, gender, education level and the breeding fixed number of year were not significant, while farmers爷cognitive characteristics, the geographical features of farms, the scale of farms and the subsidies of harmless facilities had significant impacts on the farmers爷willingness to harmless disposal for pig manure. Based on this conclusion, the relevant countermeasures and suggestions were put forward.