The invention relates to the technical field of treatment of sewage and particularly relates to a high-concentration ammonia water stripping treatment device. The high-concentration ammonia water stripping treatment device comprises a stripping tower, a liquid inlet pump, a liquid collection pool and an absorption tank, wherein a liquid inlet, a gas outlet, an air inlet and a liquid outlet are formed in the stripping tower; a nozzle, a filler layer and an air supply mechanism are arranged from top to bottom in the stripping tower; the filler layer is composed of a plurality of grid filler plates which are stacked longitudinally; the air supply mechanism comprises an air supply vane wheel and an air supply pipe; the air supply vane wheel comprises a horizontally arranged male flange plate;a plurality of arc-shaped vanes are vertically arranged on the upper surface of the flange plate and are annularly distributed at intervals along the flange periphery; a centre hole of the flange plate is connected with the air supply pipe, to which an air blower is connected, through a bearing; an umbrella-shaped mesh air hood is covered on the upper surface of the air supply vane wheel; the liquid inlet pump is used for supplying liquid to the nozzle through the liquid inlet; the liquid outlet is connected with the liquid collection pool; the absorption tank comprises a gas inlet and a liquid outlet; an adsorption layer is arranged in the absorption tank; the gas inlet of the absorption tank is connected with the gas outlet of the stripping tower. The high-concentration ammonia water stripping treatment device is ingenious and simple in structure, low in operational and maintenance costs and excellent in ammonia removing effect.