The invention discloses a packaging device for high-bearing-power optical fiber melting points. The device includes a cooling cold plate which is provided with a packging groove in the surface. Multiple independent optical fiber melting point grooves are arranged side by side along the length direction in the packaging groove. A groove side pressure bar is arranged on each of the two sides of the optical fiber melting point grooves. A groove end fixing pressure block is arranged by means of press fitting at each of the two ends of a parallel structure formed by the groove side pressure bars and the optical fiber melting point grooves. Fused optical fibers are placed in the optical fiber melting point grooves. Optical fiber melting points are in the optical fiber melting point grooves, and are coated with refractive index glue. A transparent dustproof cover plate covers the groove side pressure bars, the optical fiber melting point grooves and the groove end fixing pressure blocks, and is fixed to the groove end fixing pressure blocks and the cooling cold plate. The problem on how to arrange a high-bearing-power optical fiber melting point array is solved, and the overall layout of an optical fiber laser system is optimized. High-bearing-power optical fiber melting points can be replaced and maintained conveniently and quickly, and mutual interference between melting points is eliminated.