This invention provides a method of forming a vibration damping paint layer thick enough for reduction of the vibration. Applying an acrylic emulsion paint with 1˜5 mm thick, which comprises greater than 77.0 wt % of solid portion, 40˜50 vol % of pigment, 2-14 vol % of large sized pigment having diameter of 40-100 μm, on a surface where the vibration damping layer is desired, and heating the vibration damping paint layer at temperature lower than 140° C. for less than 25 minutes, which saves energy and saves production time. The invention saves energy necessary for heating and production time.