Construction method for waterproof and water-draining combination of basement

The invention discloses a construction method for waterproof and water-draining combination of a basement. The method comprises the waterproof and dewatering operations for the base plate and lateral wall of the basement. According to the construction method for the waterproof and water-draining combination of the basement provided by the invention, the leaking water under a foundation base plate is successfully and completely drained into a water-collecting well through a coil waterproof, dewatering and water-draining system under the foundation base plate and a rigid waterproof concrete base plate; once the water level in the water-collecting well reaches a certain height, a water-draining pump is automatically started for draining water, so that the dry state and the normal use function of the basement floor are ensured; the backfilling and ground constructions can be inserted at any time by the basement foundation base plate dewatering system after the basement construction is finished, without waiting for the completion of basement and detection for leakage, so that the working efficiency is improved, and the construction period is shortened.