The utility model discloses a portable type calibrating device of an electronic type automobile wheel position indicator angle steering wheel of the automobile industry field, aiming to overcome the problem that the automobile wheel position indicator angle steering wheel can not be calibrated portably and accurately. A detection system of the utility model comprises a handle(1), a sleeve(2), a pedestal(3), a support(4), a bearing end cover(5), a bearing pedestal(6), a rotating shaft(7), a pressure plate(8), an elastic glue cushion(9), a coder(10), a bearing(11) and a positioning bolt(12), and enables the calibration for the automobile wheel position indicator angle steering wheel to be finished.