The invention provides a blower. The blower includes: a main body extending in a longitudinal direction, a battery pack supporting member arranged on the main body, and a battery pack arranged on the battery pack supporting member, the battery pack supporting member is separable with respect to the main body, which includes a body forming a battery pack receiving portion and a mounting portion being coupled with the main body, the battery pack supporting member and the battery pack are detachably coupled to the main body. According to the blower of the invention, the battery pack supporting member is engaged with the main body, and a single battery pack or a dual battery packs can be installed by installing battery pack supporting members with different structures on the main body of the blower, which facilitates the switching between the single battery pack and the dual battery packs.