Abstract: The reserve construction of the water pollution protection projects is important for solving the outstanding problems of groundwater and ensuring the completion of the goals and tasks of groundwater ecological and environmental protection. The technical maturity of the warehousing plan is the biggest influencing factor of the project approval rate. Aiming at the three types of projects of groundwater ecological environment investigation and assessment, groundwater pollution prevention and control restoration (including sealing and backfilling of abandoned wells) and groundwater environmental supervision capacity building, combined with the problems found in the expert review process, this paper discusses the technical points of various projects in storage, and puts forward storage suggestions from the aspects of improving relevant technical guidance documents, actively exploring replicable and generalizable technical models with different departments, and overall planning of major projects, so as to provide technical support for improving the storage quality of groundwater ecological environmental protection projects.