Through the analysis of pork safety events in 2005-2014，results were found that more than 52% events were related to chemical risks of pig breed which resulted from small farmers’ abusing behavior of chemical products. The geographic distribution of pork safety incidents resulted from chemical risk also shows that Jiangsu province was a moderate risk area. We took 364 small scale pig farmers in Jiangsu province which the major pig producing areas as a case，based on Unified Theory of Acceptance and Use of Technology （UTAUT），Structural Equation Model （SEM） was used to analyze the main factor influencing small-scale farmers’ using attitude of chemical risk prevention technology. The study found that Events Impacting，Performance Expectations，Effort Expectations and Convenient Conditions，Farmers Characteristics were significantly affect their attitude to use risk prevention technology. The influencing degree of Events Impacting and Performance Expectations for small-scale farmers receive relevant risk prevention technology were the top two respectively. Therefore，under the impact of the pork safety incidents，promoting our country the small hog farmers that in the production source to accept the chemical risk prevention technology，small pig farmers should be timely guidance，modest support to actively participation in risk prevention technology training，to aggregate the easy to learn and easy to operate chemical technology system to prevent risks for the small pig farmers. It is important to form the pattern that farmers，market and government all in food safety governance.