The utility model belongs to the technical field of wastewater treatment, and relates to a nitrogen and phosphorus removal device for high-salt wastewater, which comprises a denitrification tank, a water inlet pipe communicated with the inside of the tank body is arranged at the bottom of the denitrification tank body; a water outlet pipe communicated with the inside of the tank body is arranged at the bottom of the denitrification tank body; an effluent weir and a water distributor are arranged in the denitrification tank from top to bottom, the water distributor is arranged on a section of water inlet pipe in the denitrification tank, and the effluent weir is communicated with the water outlet pipe; the device further comprises a filler bracket arranged in the denitrification tank, denitrification filter materials are arranged on the filler bracket, polyurethane sponge is arranged between the denitrification filter materials, and the denitrification filter materials are suspended ball filler. The utility model provides a nitrogen and phosphorus removal device for high-salinity wastewater, which has a simple structure, saves resources, realizes up-to-standard discharge of wastewater and reduces environmental pollution.