The invention relates to a weather-resistant weaving machine needle a needle body part (1), a needle tip part (2), a bend part (3) and a bend hook part (4). One end of the needle body part (1) is connected with the needle tip part (2) and the other end is connected with the bend part (3); the bend hook part (4) is arranged on the other end of the bend part (3); a hook tip (5) of the bend hook part(4) bends toward the needle body part (1); a groove is formed in the needle body part (1); the hook tip is embedded into the groove; and the weaving machine needle is coated with a weather-resistantlayer. The weather-resistant weaving machine needle is simply structured; yarns can be easily placed into the hook tip and blocked by a baffle rod; and work efficiency can be improved, and a weather-resistant function is provided.