The invention discloses a straight-line pull switch, which comprises a barrel (3) and a barrel cover (1), wherein the barrel cover (1) is movably connected with the upper end of the barrel (3); a barrel base (9) is arranged at the lower end of the barrel; a lower conducting plate (8) connected with a lead (10) is oppositely arranged on the barrel base; an inner barrel (4) is arranged in the barrel; a piston rod (16) is arranged in the inner barrel; a spring (2) is arranged at the upper end of the piston rod; the upper end of the piston rod is connected with a stay wire (15); the stay wire passes through the barrel cover; the lower end of the piston rod is fixedly provided with a U-shaped elastic clamping strip (17); grooves (13) capable of enabling the elastic clamping strip to contract and concede inwards are formed in two sides of the piston rod; an open slot is formed in the lateral wall of the inner barrel; locking is carried out by the elastic clamping strip; and fast restoration is achieved by the action of an upper guide groove which is in a diamond or a parallelogram during connection, so that a circuit is connected. The straight-line pull switch is compact in structure, convenient to manufacture and use, high in durability, safe, reliable, long in service lifetime and applicable to heavy-current lighting control.