The invention discloses a green light-weight fiber-reinforced metal layer tube. The metal layer tube comprises an inner-layer aluminium tube, an outer-layer aluminium tube and a fiber prepreg, the fiber prepreg is arranged between the inner-layer aluminium tube and the outer-layer aluminium tube, so that the fiber prepreg is wrapped by the inner-layer aluminium tube and the outer-layer aluminium tube, and the fiber prepreg, the inner-layer aluminium tube and the outer-layer aluminium tube are subjected to expansion joint treatment at the same time and integrally formed, wherein an expansion joint loading path of the pressure of expansion joint treatment is determined according to the intrinsic relationship of a fiber-reinforced metal layer. Therefore, the fiber-reinforced metal layer tubecan combine the advantages of aluminium and resin, and the fiber-reinforced metal layer tube with performance parameters meeting the requirements is obtained.