The utility model discloses a quick imaging and inspection device for moving objects, which includes a passage for the to-be-inspected moving object, a scanning and imaging device, a first detection unit, a second detection unit and a control system. The scanning and imaging device emits radiation beam to the to-be-inspected moving object for imaging and inspection. The first detection unit is used to identify whether the to-be-inspected moving object has entered the passage and count the time duration. The second detection unit is used to measure moving speed of the to-be-inspected moving object. The control system is communicated with the scanning and imaging device, the first detection unit and the second detection unit. The control system controls the second detection unit to detect moving speed of the moving object in accordance with the detection signal from the first detection unit indicating that the moving object has entered the passage, and inspect the moving object with a scanning frequency corresponding to the speed of the moving object in accordance with the measuring result of the second detection unit.