PURPOSE: To provide a device for sending weft for a fluid jetting weaving machine, capable of preventing end breakage of weft and reducing loss of weft.

CONSTITUTION: This device for sending weft is equipped with a ring-shaped material 15 which is installed between a waft feeding material 7 stored with weft 3 and a nozzle 8, is wound with the weft 3, revolved by a rotator 14 held on a driving member 12 and driven, a supporting member 40 which is provided with a first gas route 41 and a second gas route 42 for connecting a high- pressure air supplying means 43 and a connecting and separating means S for the ring-shaped material 15 and the rotator 14 and a control means 30 for regulating a thread handling unit 10 having a vacuum generating means for making the first and the second routes under negative pressure and the high-pressure air supplying means 43.