The utility model discloses a pattern roller groove structure for a hot-rolled hyacinth bean type pattern plate. The pattern roller comprises a pattern roller groove formed in the roller surface of the pattern roller, the edge of a groove opening of the pattern roller groove is composed of two symmetrical arc edges, the groove bottom of the pattern roller groove in the length direction is in an arc shape, the width of the groove opening of the pattern roller groove is 10 mm, the included angle between the groove faces of the two sides in the pattern roller groove is 116-120 degrees, and the length of the groove opening of the pattern roller groove is 30-32 mm. According to the utility model, the angles of the groove surfaces on the two sides are increased to 116-120 degrees; therefore, theinclination of the groove surface of the pattern roller groove can be reduced; the extrusion force of the groove surface on the steel plate pattern beans is increased; therefore, the patterned beansof the patterned plate can be extruded more easily to increase the height, the load borne by the rolling mill is reduced, the service life is prolonged, the included angle between the groove face andthe roller face of the patterned roller is correspondingly increased, the angle of the connecting position of the groove face and the roller face of the patterned roller is passivated, and the risk ofchipping of the edges and corners of the roller groove is reduced.