The invention supplies a intercross type complex array sensor of ECT/ERT double mode imaging system, the sensor installed in the tested object Pipeline, it includes the same electrode number ECT electrode array and ERT electrode array which equalize, across installed in the inner/outer wall of tested object Pipeline, the electrode number is 8 to 64 in the ECT and ERT electrode array, it installed ERT electrode between every two ECT electrode; it installed shielded enclosure out of the related ERT electrode. Its beneficial effects is that it can obtain the information flow at the same time, the same location of the measured fluid when it use the sensor, at the same time, it can obtain measuring information at more direction which is benefit for raising the quality of restored two modal system imaging. When ECT electrode array works, no reference to the cut state of simulate electron switch, ERT electrode as shielded electrode would not interfere ECT electrode array working, on the contrary ERT electrode could reduce the dynamic range of the measured capacitance, and benefit for measuring ECT system, the reverse is true.