The invention provides a high-efficiency material distribution powder selector which comprises a conical bucket, a cage type rotator, a primary air inlet, a powder selection shell, a slope-shaped material scattering disc, a bracket, an air outlet pipe, a spindle, a drive device, a vortex scattering blade, a window type feeding device, an air guide blade, a secondary air inlet, a secondary vortex scattering device and material distribution plates. The slope-shaped material scattering disc, which consists of an involute type slope-shaped material scattering plate, a material baffle and a reinforcing plate connecting device, is installed at the upper part of the cage type rotator and below the window type feeding device, the window type feeding device comprises a feeding pipe, an air inlet adjustment valve, an adjustable shutter and a square pipe, the square pipe is installed on the side surface of the feeding pipe, the air inlet adjustment valve is installed in the square pipe, an opening is arranged at the joint of the square pipe and the feeding pipe, the adjustable shutter is arranged at the opening part, a set of static material distribution plates is arranged above the material scattering disc, and the vortex scattering device is arranged at the air outlet part of the air outlet pipe.