The invention relates to a distributed-type advanced wastewater treatment nitrogen and phosphorus removal device and an application method thereof. The distributed-type advanced wastewater treatment nitrogen and phosphorus removal device comprises an equipment module, a nitrogen removal module, a phosphorus removal module, a water inlet tank and a water outlet tank. The equipment module is provided with an inlet pump, a backflushing pump, an air blower and a control cabinet. The nitrogen removal module comprises a shell A. A water inlet, a backflushing water outlet A, a nitrogen removal wateroutlet, a backflushing water inlet and a backflushing air inlet A are arranged on the shell A. Nitrogen removal fillers are arranged in the shell A. The phosphorus removal module comprises a shell B.A water outlet, a backflushing water outlet B, a phosphorus removal water inlet and a backflushing air inlet B are arranged in the shell B. Phosphorus removal fillers are arranged in the shell B. Thedistributed-type advanced wastewater treatment nitrogen and phosphorus removal device is simple in structure, reasonable in design, safe and reliable in operation, high in automation degree and low inproduction and maintenance cost, operation efficiency of workers is improved effectively, and the objectives of unattended operation, energy conservation and environment protection are achieved.