Provided is a surgical tools (45) having multiple functions exhibited by end effector parts (1,2,3), which is small-sized and inexpensive, and which can eliminate the necessity of replacement of surgical tools. The surgical tools incorporating: a tip end portion (5) having a plurality of end effector parts, and a tool sleeve (40) through which a transmission mechanism of driving force for applying driving force to the tip end portion is led. The plurality of end effector parts comprise a pair of a first end effector part (1) and a second end effector part (2) so as to have a first tool function, and a third end effector part (3) mated with one or both of the first end effector part and the second end effector part so as to have a second tool function. The transmission mechanism of driving force comprises a first transmission mechanism (205-280) of driving force for applying a driving force to the first end effector part and the second end effector part, and a second transmission mechanism of driving force for applying a driving force to the third end effector part, independent from the first transmission mechanism (205- 280) of driving force.
