A pair of pruning shears with multi-stage actions for cutting branches with larger diameters is revealed. The pruning shears include a fixing member, a blunt member, a cutting tool, a crank member, a moveable handle, a first locking member, and a second locking member. The fixing member, the crank member and the cutting tool are pivotally connected. The cutting tool consists of a blade part and a curved teeth part. The first locking member and the second locking member are pivotally connected to the fixing member and the crank member respectively. Each locking member is disposed with a hook part, a first projecting rod, and a second projecting rod. The first projecting rod and the second projecting rod are arranged symmetrically. The first locking member and the second locking member are engaged with different teeth respectively at different stages. Thereby the pruning shears performs cutting at different stages.
