Abstract: As water conservancy projects play an important role in the process of agricultural development, they can promote agricultural development to a certain extent. As the key point of hydraulic engineering construction, concrete construction has a direct impact on the overall quality of engineering construction. At present, there are still some problems in the application of concrete construction technology in the construction of water conservancy projects in China, and the concrete construction quality is not ideal, which has caused certain restrictions on the development of agriculture in China and is not conducive to the further development of agriculture. Based on this, this paper makes an in-depth analysis of the factors affecting the concrete construction quality of water conservancy projects, and puts forward the key points of concrete construction technology implementation, in order to bring some reference for water conservancy construction units.