The invention discloses an irrigation device for grape planting. The irrigation device comprises a water pump, wherein one side of the water pump is provided with a filtering box; the outer surface ofone side of the filtering box is fixedly connected with a header pipe through screws; one side of the header pipe is fixedly connected with a main valve through screws; one side of the main valve isrotatably connected with a vertical branch pipe; one end, far away from the main valve, of the vertical branch pipe is rotatably connected with a horizontal branch pipe; the outer surface of the top part of the horizontal branch pipe is rotatably connected with a first thin pipe; and the outer surface of the top part, far away from the horizontal branch pipe, of the first thin pipe is rotatably connected with a spray head. According to the invention, two irrigation manners can be separately or simultaneously adopted for irrigation according to growth demands of grape planting, so the laying cost is reduced; a first circular ring, a second circular ring, the drip irrigation head and a fixed bolt can be fixedly connected to form a circular ring to be fixedly inserted into the ground at the outer periphery of grape roots, so rapid checking of the position of the drip irrigation head and marking of a grape plant can be conveniently realized; and the outer periphery of the grape roots in winter is protected, and a heat-preserving device is conveniently covered to protect the outer periphery of the grape roots, so practicability is greatly increased.