The utility model provides a portable insulating armored fabric defect tester which characterized in that: including lift kits, handheld shadow scanner, combination control case, display screen, permanent magnetism probe and two coordinate numerical control infrared laser positioner, handheld shadow scanner, display screen and permanent magnetism probe all are connected with the combination control case, lift kits is used for the fixed insulating armored fabric of treating the detection, and handheld shadow scanner is used for gathering the image, the permanent magnetism probe is connected with the voltage output end of combination control case, the voltage in permanent magnetism probe both sides is applyed through the change to the combination control case, realizes the measurement to insulating armored fabric insulating properties. The utility model discloses an insulating armored fabric defect tester has been solved current simplicity and has been relied on the people to observe the inaccuracy of examining to and the problem that adopts " megger " can't carry out scientific measurement to the fault location, can guarantee that the armored fabric that has insulating hidden danger is check out, ensured live line work personnel's personal safety, beneficial effect is showing, is suitable for application promotion.