The invention provides a gardening tool. The gardening tool comprises a supporting mechanism, an actuating mechanism arranged on the supporting mechanism, a transmission mechanism and a brake mechanism. Compared with the prior art, the gardening tool make the brake mechanism have a braking effect by a holding block abutting a master arm, therefore a brake of the gardening tool has a quick responsespeed, the braking effect is good, and the safety performance of the gardening tool is improved.