There are some hidden dangers in building garages on rural underground reservoirs. The structure and carrying capacity of underground reservoirs are usually to store water sources, not to bear the weight of vehicles and buildings. Building a garage on an underground reservoir will cause additional load on the reservoir structure, leading to structural damage and instability. Underground reservoirs usually do not consider the needs of vehicle access and parking, and lack corresponding ventilation, drainage, safety exits and other facilities, which has potential safety hazards. The construction and maintenance of underground reservoirs need strict norms and professional knowledge. Improper construction or untimely maintenance will lead to problems such as water leakage and collapse, which will further endanger the safety of the garage and users.