Provided is a reciprocating tool capable of having an extended life. The reciprocating tool comprises a motor, an output shaft part that is driven by the motor and is configured to perform a reciprocating motion where movement in a first direction and movement in a second direction opposite to the first direction are alternately repeated, and a shaft support part for supporting the output shaft part such that the output shaft part is capable of the reciprocating motion, wherein the shaft support part has one or more rolling members which contact the output shaft part to support the shaft part, and which perform a reciprocating motion while rolling along the output shaft part in conjunction with the reciprocating motion of the output shaft part.