To provide a mounting method of a patch antenna, capable of preventing the damage of a feeding pad as much as possible and performing highly reliable surface mounting.

The length of a feeding pin 13 is set to such a length that an upper end is projected from the upper surface of a radiation electrode 10 when a lower end is abutted to a feeding pad 61, the feeding pin 13 is loosely fitted to a through-hole 20 of a dielectric 11, and the feeding pin is temporarily fixed in the state that the lower end of the feeding pin 13 is positioned flatly with the lower surface of a ground electrode 12 or above the lower surface by first solder 30 deposited from the upper end part of the feeding pin to the radiation electrode. By fusing the first solder by heating, the feeding pin 13 is dropped inside the through-hole 20, and the lower end of the feeding pin 13 is abutted to the feeding pad 61. Thus, the damage of the feeding pad 61 is prevented and the feeding pin 13 and the feeding pad 61 are surely connected.