The present invention discloses a dual array detector module adapted to radiation-imaging, comprising: a first detector array consisting of a plurality of first detectors and arranged on a first surface of a heavy metal plate; a second detector array consisting of a plurality of second detectors and arranged on a second surface of the heavy metal plate, the second surface is opposite to the first surface; and a mounting frame, in which the first detector array and the second detector array arranged on the first and second surfaces of the heavy metal plate respectively are mounted in the mounting frame. The dual array detector module according to the present invention is simple in structure and convenient for mounting and maintenance, so that a great economic benefit can be obtained by improving the structure simply and increasing a little of investment.