The invention discloses a yarn tension real-time measurement device which comprises a fixing frame, wherein a support is fixed on a front side wall surface of the fixing frame, a force sensor is fixed on a back side wall surface of the fixing frame, a guiding pipe perpendicularly penetrates through a side wall of the fixing frame and is inserted into a seat body of the force sensor to be arranged, a force transfer rod is connected in the guiding pipe and can move in the guiding pipe forwards and backwards, a sliding rod is in sliding connection on the support in the same direction of the force transfer rod, a contact chip is fixed at the back end of the sliding rod, and a hole is formed in the front end of the sliding rod; yarns penetrate through the hole, so that the sliding rod slides under force to enable the contact chip to be contacted with the front end of the force transfer rod, the force transfer rod can slide backwards under the pushing of the contact chip to be contacted with an internal contact chip of the force sensor, and the force transfer rod can reset under the action of the restoring force of the contact chip. The yarn tension real-time measurement device realizes direct measurement of yarn tension.