This study aims to examine the effect of Good Corporate Governance on firm value by disclosing Corporate Social Responsibility and profitability as a moderating variable. Good Corporate Governance variables are measured by CGPI scores. Company value variable is measured by Tobins' Q. Corporate Social Responsibility disclosure variables measured by the GRI 4.0 item checklist. The profitability variable is measured by Return on Assets (ROA). This study uses a sample of companies that participated in the IICG on the Indonesia Stock Exchange (IDX) for the period 2014 - 2018. The sampling technique used was purposive sampling. The sample used in this study amounted to 7 companies, a total of 35 data. The data analysis technique in this study is the moderation regression analysis. The software used for data processing is SPSS version 22 for Windows. The results of hypothesis testing are as follows. First, Good Corporate Governance influences company value. Second, disclosure of Corporate Social Responsibility is able to moderate the relationship between Good Corporate Governance and corporate value. Third, profitability is not able to moderate the relationship between Good Corporate Governance and firm value.