To form a multicolor pattern having multicolors laminated on a wall or upper layer.

Finishing paint 2 is coated and scattered on a wall 1, dried, and then two colors A and B are simultaneously scattered about 10 to 20% of wall area by using a multi-head type gun about 0.75 kg of air pressure of a compressor. At this time, the colors A, B adopt dense and primary colors to obtain multicolor pattern having high grade feeling. Then, two colors C, D are simultaneously scattered on about 20 to 30% of wall area by using a multi-head gun by about 0.75 kg of compressor pressure after the coating step. At this time, the colors C, D adopt monochrome to obtain a multicolor pattern having more stable quality feeling.