Considering the important role Zhengzhou，Henan Province plays in the Chinese food industry，this paper chooses 88 food producing enterprises that of different types in Zhengzhou as samples，uses the combined method of Penalized Likelihood Estimation and Interval Censored Regression Model to discuss and compare respectively the major factors that affect the food producing enterprises’ investment willingness and investment level towards applying traceability system.

According to the research of this paper，the major factors that affect the food producing enterprises’ investment willingness towards traceability system are the education background and age of the executives，sales volume，quality certification，expected return and preferential policy of the government. And the major factors that affect the enterprises’ investment level towards traceability system are the industrial characteristics，sales volume of the enterprise，and expected return of the investment and the preferential policy of the government.