Laser welding method

A laser welding method of welding a second member to a first member by irradiating a laser beam, the method comprising:

• a preparation process of preparing a temporarily-welded member by temporarily welding the second member to the first member, the temporarily-welded member including a plurality of connection portions;
• and
• a welding process of welding the second member to the first member by irradiating the laser beam on the temporarily-welded member,
• the welding process including:
• a first process of irradiating the laser beam from a prescribed position to a second connection portion among the plurality of connection portions, the second connection portion being adjacent to a first connection portion among the plurality of connection portions, the prescribed position being between the first connection portion and the second connection portion, and
• a second process of irradiating the laser beam from the first connection portion to the prescribed position after the first process, wherein
• the prescribed position is positioned between a first midpoint and a second midpoint,
• the first midpoint is positioned midway between the first connection portion and the second connection portion, and
• the second midpoint is positioned midway between the first midpoint and the second connection portion.