To provide an environmental-friendly and energy-saving reciprocating cutting tool with a reduced power supply amount having superior workability and favorable efficiency by including a guide by slit-shaped lights to enable a blade to cut on a marking line when light and the marking line are aligned in a straight line.

A generator 12 is disposed so that a portion of a plunger 7 that is magnetized can reciprocate in a coil incorporated in the generator. The generator 12 and a light 10 are wired by a lead wire 14, a conversion circuit 11 for converting an alternating current to a direct current is provided in the middle of the wiring, slits are formed at an upper part of a cutting line at an upper part of the housing 1 and at an upper part of a cutting line in front of the housing. The guide of the slit-shaped lights 16, 17 is provided so that the blade can cut on the marking line when light is irradiated to the outside from the slits at two locations and the two slit-shaped lights are aligned in a straight line with the marking line.