To provide a wire saw for enhancing a working efficiency by supporting a plurality of works to a work supporting mechanism in the state that bearings are regulated with a simple constitution, and simultaneously working the works.

A plurality of works 22 are detachably supported to a lower part of work supporting mechanism 21 via a support base 40. Bearing regulating mechanisms 44 are arranged corresponding to the respective works 22 on the base 22. Crystal orientations of the respective works 22 are regulated by these mechanisms 44. And, the base 40 is mounted at the mechanism 21. In this state, the work 22 is brought into contact with the wire 18 by the mechanism 21 to be worked while feeding a wire 18 between working rollers 15 and 16.