The invention discloses an assembled absorption tube arrangement module and a using method thereof, belonging to the technical field of instruments and equipment in laboratories. The assembled absorption tube arrangement module comprises at least one module units, a lifting belt, two module side elevations and bottom supporting clamping plates, wherein each module unit is of a cubic structure, an inner damping sponge support is arranged in the center inside each module unit, and two opposite sides of the cubic structure of each module unit are respectively provided with a sunken clamping slot and a raised clamping slot; the inner sides of the two module side elevations are provided with sunken clamping slots; two ends of the lifting belt are respectively arranged in lifting belt expansion holes in the upper sides of the two module side elevations, and the lifting belt expansion holes are provided with buckles; and the bottom supporting clamping plates are respectively arranged at the bottoms of the module side elevations and are movably connected with the module side elevations. Compared with the existing absorption tube arrangement box with a fixed appearance, the assembled absorption tube arrangement module can be assembled randomly according to the amount of absorption tubes and is capable of saving the space, simple, easy to operate and convenient to carry and transport.