Abstract: An industrial CT inspection device was designed based on a 3D ball detection platform. Through driving the universal wheel device of the 3D ball platform to roll, the spherical work-piece tray bearing internal workpieces was to rotate along the required trajectory direction of test, and at the same time the ray source probe was opened for scanning and imaging function to complete the CT scan. X-ray machine and a linear accelerator were used as radiation source and linear array detector or digital flat panel detector was used for image detection receivers. A more programmatic industrial CT scanning method was worked out.