Abstract: In a stirring device of liquid material, of circulation type comprising a return pipe inserted in a stirring tank, and a feeding pipe connected to bottom portion of the stirring tank, so that the liquid material fed through the feeding pipe is returned to the return pipe, an expanded part having inner diameter larger than that of the return pipe is provided at top end of the return pipe, and plurality of holes having the total opening diameter larger than the lateral sectional area of the return pipe are bored on both sides of outer circumferential portion of the expanded part. Two reverse circulation streams in the horizontal direction are formed within the circulation tank, and the liquid material is circulated through the feeding pipe and the return pipe, thereby the stirring is performed well without involving the excessive air.