The invention relates to a high-strength weather-proof brake cable. The high-strength weather-proof brake cable comprises an outer cladding layer (1), two lining pipes (2) arranged in parallel side by side and two metal wire groups (3), wherein each brake cable body (4) comprises an inner carbon fiber core cable group (4.1) and an outer resin layer (4.2); one end of an outer sheath pipe (5) is arranged on the outer cladding layer (1); the other end of the outer sheath pipe (5) axially extends outwards and is arranged on each brake cable body (4); an annular belt (6) is arranged at the end of each brake cable body (4). According to the high-strength weather-proof brake cable, two brake cable bodies are uniformly stressed during braking; meanwhile, the brake cable bodies are simple to mold, light in mass, chemical corrosion-resistant, high in weather resistance and low in production cost; the lining pipe and the outer cladding layer of the brake cable has small possibility of sliding relative to each other, so that the use effect of a brake system is ensured; the outer sheath pipe can be used for effectively protecting the abrasion of a connector part of the end of the brake cable; the riding safety is ensured.