The invention discloses a blower-vacuum comprising a housing, a fan, a motor, a suction inlet, a blower pipe, a blow outlet, an air outlet, an air guide plate and an auxiliary positioning mechanism. When the blower-vacuum is in operation, the blower-vacuum can be imparted at least a suction state and a blow state just by sliding the blower pipe back and forth. The blower-vacuum has significant blowing and suctioning effects, is simple to switch and is lower in designing and manufacturing costs than like products.