This study aims to recognize and analyze some factor affecting Corpotare Social Responsibility disclosure in companies included in LQ 45 index. Factors affecting company social esponsibilities disclosure in this study consist of the board of commissioners’ dimension, industry type, international operation, and company dimension. This study tries to apply some theories used in the previous study.   Population in this study is all company listed in LQ45 index in 2014. Total samples of this study are 40 companies determined by purpossive sampling method that is by taking samples with some criteria.   The result of this study shows that the board of commissioners’ dimension, company dimension, and international operation affect positively significant toward company social responsibility disclosure, whereas industry type does not significantly affect toward company social responsibility disclosure.  
Key word: Corporate Social Responsibility, The Board of Commissioners’ Dimension, Industry Type, International Operation, Company Dimension