The restoration project of mountains-rivers-forests-farmlands-lakes-grasslands is an implemented nationwide project aimed at realizing the overall protection, systematic restoration and comprehensive management of natural resources. Ecological Asset (EA) and Gross Ecosystem Product (GEP) are two important ecological indicators of evaluating the benefits of ecological protection, which are able to reflect the improvement of the natural ecological system conditions in the restoration project region objectively. Taking Ganzhou, Jiangxi Province as an example, we calculated the EA and GEP of this area and compared the changes of ecological asset index, ecosystem acreage and quality, and GEP contribution rate in the whole city and inside or outside the restoration project region before and after the project implementation to explore the protection benefits of the restoration projects completed. Meanwhile, we analyzed the main factors affecting the changes of GEP inside and outside the restoration project area in order to effective protection of the ecological environment from different angles and provide a scientific basis for the long-term development of the benefits of ecological restoration projects.The results were as follows:(1) About EA, the natural ecological system acreage and quality both improved in Ganzhou, and the comprehensive index increased by 12.89%. Among them, the acreage of natural ecological system in the restoration project region increased by 3.23%; the quality of natural ecological systems in the non-engineering region increased significantly, with biomass and vegetation coverage increased by 12.93% and 2.08%, respectively. (2) The GEP of whole Ganzhou was on the rise. From 2015 to 2019, the GEP of restoration project region and non-engineering region in Ganzhou increased by 14.21, 0.758, and 13.45 billion yuan, respectively, with an increase of 1.38%, 3.90%, and 1.33%. (3) The change of GEP in restoration project region was mainly affected by changes in the acreage of natural ecological system, with a contribution rate of 81.44%; the change of GEP in non-engineering region was mainly affected by changes in the quality of natural ecological system, with a contribution rate of 95.03%. The paper, evaluating the protection effectiveness of restoration projects based on EA and GEP, aimed to provide references for the evaluation of ecological protection benefits in restoration project region. We sought to provide a scientific basis for the local government to establish an evaluation and accounting mechanism for ecological protection effectiveness and optimize the ecological compensation system, and that was of great significance to promoting the ecological civilization construction in Ganzhou, Jiangxi Province.