This study aims to discover emperical prove for the effect of managerial ownership, institutional ownership , debt covenant, growth opportunities on the accounting conservatism of manufacturing company listed in indonesia stock exchange (BEI) year 2014-2016 .Tthe sampling technique used in this study was purposive sampling. The final sample used for this study was 133 samples, after being reduced from outlier. The data analysis technique used was multiple linear regression. Besides that, all variabels had been tested on its normality, multicolinearity, autocorelation, and heteroscedasticity. The result of the study showed that all variables passed the classical assumption test and appropriate to be used as the research data. The result of the study showed that the managerial ownership and institutional ownership had no significant effect on accounting conservatism, while debt covenant had negative and significant effect on accounting conservatism, growth opportunities had positive and significant effect on accounting conservatism. Company size as control variables had positive and significant effect on accounting conservatism.