The global issue of climate change has affected business behavior and activities around the world. Increased greenhouse gas emissions, particularly carbon, are a major contributing factor to climate change. Along with that, investors' demands on companies are increasing. Investors now not only seek information about the company's profitability, but also assess the extent to which the company is environmentally responsible. This study aims to analyze the effect of carbon emission disclosure (CED) and company characteristics on firm value, with company reputation as a moderating variable. The sample in this study was selected using purposive sampling method, with a population of non-financial companies listed on the Indonesia Stock Exchange in the period 2020-2022. Based on data analysis using SPSS 22 with the Moderated Regression Analysis (MRA) method, the results showed that Carbon Emission Disclosure (CED) affects firm value. However, company characteristics as measured by company size and company age have no influence on firm value. In contrast to profitability, which in this study proved to have an effect on firm value. From these findings, it can be concluded that corporate reputation cannot act as a moderator variable in the relationship between Carbon Emission Disclosure (CED) and company characteristics on firm value.