The invention discloses a carbon nanotube/epoxy resin composite material torque measuring transducer and a manufacturing technique thereof. The carbon nanotube/epoxy resin composite material torque measuring transducer comprises a chemical fiber fringe thread and a carbon nanotube/epoxy resin composite material attached to the chemical fiber fringe thread, wherein both ends of the carbon nanotube/epoxy resin composite material are respectively connected with a copper wire; and the carbon nanotube/epoxy resin composite material is mainly composed of an epoxy resin A, carbon nanotubes and a curing agent B. The transducer can be connected between smaller rotating shafts to measure the torque. When the transducer is used for measuring identical magnitude of torque, the resistance variation is enhanced by several times as compared with the traditional transducer, and the measurement accuracy is enhanced.