The aim of this research was to test and analyze the effect of occupational safety and health (X1), organizational culture (X2), communication (Y1) as the mediating variable on the organizational performance (Y2) the research method was a quantitative approach. The research population was 150 employees at PT. PEM. Questionnaires that were distributed to the respondents used Likert Scale with 5 levels of answers. The data collection techniques employed were interview and questionnaire. The questionnaire survey sheets were sent randomly to the employees of PT. PEM. Then the data were analyzed using Smart PLS (Partial Least Square) version 3.2.8 the results of this research are as follows. The occupational safety and health variable had a positive and significant effect on the communication variable, the occupational safety and health variable had a positive and significant effect on the organizational performance variable. Besides, the organizational culture variable had a positive and significant effect on the organizational performance variable, and the organizational culture variable had a positive and significant effect on the communication variable.

Keywords : Occupational Safety And Health, Organizational Culture, Organizational Performance And Communication.