The invention discloses a novel optical fiber communication cold connector. The novel optical fiber communication cold connector comprises a protective case, the inner wall of the protective case is provided with internal threads, the inside of the protective case is threadedly connected with a moistureproof sheath, and one end of the moistureproof sheath is fixedly provided with a ceramic stub; an optical fiber connecting inner core, and both ends of the optical fiber connecting inner core are provided with V-shaped notches, between which an optical fiber connecting channel is formed; the external end of the optical fiber connecting channel is provided with a heat-shrinkage sleeve; the protective case, the moistureproof sheath and the heat-shrinkage sleeve are provided with a hot melt adhesive input channel; an embedded optical fiber is arranged inside the ceramic stub; the inside of the other end of the moistureproof sheath is provided with an optical fiber body. According to the novel optical fiber communication cold connector, the heat-shrinkage sleeve can avoid displacement of the optical fiber during shrinkage to avoid the problem of optical fiber connecting failure; meanwhile, the novel optical fiber communication cold connector is moistureproof and reusable; the optical fiber connecting inner core is provided with the V-shaped notches to facilitate insertion of the optical fiber.