The invention discloses an efficient energy absorption fiber and metal composite pipe and a mold-free preparation method of the efficient energy absorption fiber and metal composite pipe. The method comprises the following steps that A1, a metal inner pipe subjected to anodizing surface treatment is obtained, a fiber fabric with the certain size is cut according to the size of the metal inner pipe, preheated and activated and is wound and laid on the metal inner pipe; A2, a metal outer pipe subjected to anodizing surface treatment is obtained and drilled in the axial and radial directions, andthe metal inner pipe where the fiber fabric is laid is sleeved with the metal outer pipe; and according to the designed structure of the fiber and metal composite pipe, whether the steps of repeatedly laying fiber fabrics outside the metal outer pipe and sleeving an another metal outer pipe and the repeating frequency are determined. According to the mold-free preparation method of the efficientenergy absorption fiber and metal composite pipe, the efficiency is high, flexibility is high, the finished product quality performance is excellent, the production cost is greatly reduced, and a goodthough train and reference are provided for low-cost preparation of composite materials.