This study deals with developing a measuring system which can provide with information on the weaving performance of warp yarns, which works on the basis of a physical simulator. To reach the initially purposed intention, we measured the warp yarn tension. The measured signal was processed to produce the dynamic average tension, maximum and minimum tension values, and the tension change slope with respect to test cycles, etc.. Results revealed that information on the weaving performance factors such as hair occurrence, entanglement of warp yarns, yarn breakages, and the warp yarn tension relaxation as well could be extracted from the measured tension behavior of the warp yarns, which let the evaluation of the weaving performance of new warp yarns be conducted without direct loading of the yarns on the weaving machine so that the time and material required for weaving fabrics with new warp yarns can be drastically reduced.