Abstract: Based on depicting the content and dimensions of government trust in the issue of transgenic technology ,using the questionnaire and structural equation,the study explored a rational attitude decision-making model based on trust in government. The study found that, in the situation of information asymmetry and transfer of the Information dissemination power center, the field of "trust - perceived - attitude" have become the "path dependence" in public attitudes of transgenic technology. In the issue of transgenic technology , contract trust, cooperation trust and institution trust have a significant effect on the individual rational decision-making mechanism based on perceived benefits and perceived risk, thus affecting the public attitude towards transgenic technology