The invention discloses a sprinkling device for agricultural seedling cultivation, the structure of which comprises a water tank, a water pump, a shunt pipe, and a water spray pipe. The water spray pipe includes a mounting seat, a water spray pipe body, and a spray hole. , fixed seat, water spray block, water spray block includes water spray body, water inlet hole, water guide plate, spray block, the present invention utilizes the top of water guide body to be set as isosceles ladder shape at last, and on the upper surface of water guide body The groove is set, and the water flowing through the water guide body will be sprayed in the middle, so that the two streams of water will collide together in the air, so that the water mist will disperse and fall on the soil where the seedlings are planted, so as to avoid the impact of the water falling on the roots of the seedlings on the soil. Flush, so that the seedlings can be watered normally.