The invention discloses a hidden type raft plate penetrating anti-seepage water collection well capable of being plugged and a construction process thereof. A water collection well body penetrates through a raft plate and is welded to a raft plate main reinforcement, a water drawing pipe and a gas exhaust pipe are arranged in the water collection well body, water is drawn and drained normally before well plugging, concrete is poured into a space among the water collection well body, the water drawing pipe and the gas exhaust pipe in the normal water drawing state during well plugging, after concrete is solidified and generates strength capable of resisting underground water pressure, a valve on the water drawing pipe and a valve on a gas inlet pipe are closed, the upper water drawing pipe and the gas inlet pipe are dismounted from movable joints, the water drawing pipe and the gas inlet pipe are tightly plugged through choke plugs, concrete is poured to the positions of the valves in a supplementary mode, and well plugging is completed. The structure and process are simple, operation is easy, the problems that building foundation construction fails or has quality problems due to difficult underground water drawing and draining during serious water burst foundation pit construction are solved, construction is conducted through local materials, operation is convenient, building spaces are not occupied, and meanwhile, the problems that well plugging is difficult to conduct through traditional water drawing and draining processes, the well plugging quality is low, and water leakage is liable to occur are solved.