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Development of on-site fast detector using for waterproof membrane joint peeling strength has improved the waterproof membrane on-site construction quality evaluation level and construction quality decision capability. Detectors capabilities in two-dimensional movement and multi-angle detection fill the domestic gap. Verification test result of the detector shows that, the peeling force will fluctuate within certain scope with peeling of joints; the longer the membrane is stretched, the greater the error is; the error caused by angle deviation is about 7% and error caused by joint deviation is about 4%, and the test result satisfies the evaluation requirement on waterproof membrane joint peeling strength at construction site. The development of detector improves the construction quality, construction management and acceptance of waterproof membrane.