The invention discloses a fully-automatic welding die for a braided wire and an adaptor. The fully-automatic welding die for the braided wire and the adaptor comprises a base, a guide sleeve, a spring clamp, a U-shaped pressing block, a lower cavity template and lower positioning die mold inserts. The position, close to the front side, of the back of the base is provided with the guide sleeve, the middle of the upper plane of the base is provided with a downwards concave plane, the rear side of the upper plane of the base is provided with the spring clamp, the lower cavity template is arranged on the downwards concave plane, the position, close to the spring clamp, of the lower cavity template is embedded with the two lower positioning die mold inserts which are arranged side by side, and the U-shaped pressing block is arranged above the lower positioning die mold inserts and is arranged on the position of a spring pressing piece of the spring clamp. By the adoption of the method, the braided wire and the adapter can be prepositioned and then welding is conducted through a fully-automatic welding machine, efficiency is high and the welding error is prevented.