This study aims to determine the effect of Social Disclosure, Corporate Diversification and Compensation Bonuses both together (simultaneous) or individually (Partial) against the Earnings Management in Manufacturing Companies listed on the Indonesia Stock Exchange in 2012-2014. The data in this research is secondary data obtained from the financial statements and the Annual Report of companies in Indonesia Stock Exchange (IDX). The population in this research is manufacturing companies listed in Indonesia Stock Exchange in the year 2012-2014 as many as 141 each year with sampling purposive sampling and obtained a sample of 33 companies each year. Methods of data analysis used in this study were using multiple linear regression analysis to test hypotheses using SPSS version 16. The results showed that not all independent variables used in this study had a significant influence on Earnings Management.