METHOD FOR MANUFACTURING STABILIZER

A method for manufacturing a stabilizer (1), the stabilizer (1) including a main body bar (11) that is elastically deformable, and a pair of connecting plates (12) that are separately connected to a pair of left and right suspension devices (50), the method including a forging step of forming the connecting plate (12) by forging both end portions of a material tube (W), in which in the forging step, both end portions of the material tube (W) are crushed in a radial direction to be formed into the connecting plate (12) in a state where a sealing metal plate (17) heated to a temperature equal to or higher than a melting point is disposed inside both end portions of the material tube (W) heated to a temperature lower than the melting point.