This study aims to analyze the effect of the implementation of Government Accounting Principles and Government Accounting Standards based on the Government Accounting Conceptual Framework (KKAP) on the Quality of Financial Reports of local governments in DKI Jakarta. This study uses a quantitative approach with an associative method. The study population is employees of local government agencies in DKI Jakarta who are involved in financial management, with a sampling technique using purposive sampling. The data used are primary data obtained through the distribution of questionnaires with a Likert scale. The data analysis technique uses multiple linear regression supported by classical assumption tests and hypothesis tests (t-test and F-test). The results of the study indicate that Government Accounting Principles partially have a positive and significant effect on the quality of financial reports, and that Government Accounting Standards based on KKAP also have a positive and significant effect on the quality of financial reports. Furthermore, both variables simultaneously have a significant effect on the quality of financial reports of local governments in DKI Jakarta. This indicates that the better the implementation of government accounting principles and standards, the higher the quality of the resulting financial reports, thereby increasing the transparency and accountability of regional financial management.