An electronic device connected to a wire is provided, including a printed circuit board having a hole, a hollow tube, a plurality of blades separated from each other, and a solder, wherein the wire in inserted into the hollow tube and electrically connected to the printed circuit board. The hollow tube is extended through the hole. The solder is connected to the blades and the printed circuit board. The blades are connected to the hollow tube, and a reflex angle is formed between the inner wall of the hollow tube and each of the blades.