PT Krakatau Argo Logistics is a multimodal logistics transportation company that uses land, sea and air transportation modes. In 2020 at PT Krakatau Argo Logistics there were still accidents and incidents that disrupted operational processes and suffered material losses, so work productivity could decrease. Therefore, the purpose of this study is to see the effect of the implementation of the safety management system of public transport companies with employee productivity. The research method used is multiple linear regression, t test, f test and coefficient of determination (R²). The results of the study obtained a significance value of 0.000 <0.05 and a t-count value of 6.182 > 2.005 t-table, so it can be said that the implementation factor of SMKPAU affects work productivity and fcount 14, 998 > 2.54 f table and a significance value of 0.000 <0.05, so it can be said that work productivity can be significantly affected by the independent variables of SMKPAU implementation, age, education level and years of service. And the value of R Square obtained is 0.531, this can be interpreted that the effect of variable X simultaneously on variable Y is 53.1%.