This paper reviewed the relationship between safety climate(management commitment, safety education, preventive activity) and safety participation, and the mediating effect of safety motivation(intrinsic and extrinsic motivation) in small business employee. Based on the responses from 270 employees, the results of multiple regression analysis appeared as follow; 1) management commitment, safety education, and preventive activity effect positively on intrinsic/extrinsic safety motivation. 2) management commitment, safety education, and preventive activity effect positively on safety participation. 3) intrinsic and extrinsic safety motivation effect positively on safety participation. 4) intrinsic safety motivation mediates between 3 climate factors(management commitment, safety education, preventive activity) and safety participation. 5) extrinsic safety motivation mediates between only management commitment and safety participation.