Method of manufacturing HDMI connecting plug

The invention discloses a method of manufacturing an HDMI connecting plug. The method comprises the following steps that A, a plurality of conductive terminals (2) and a plug seat (1) are connected, the conductive terminals (2) are provided with welding portions (3), each welding portion (3) includes a welding pad (31) and welding wings (32) which are arranged on two sides of the welding pad (31) and form one body with the welding pad (31), and the welding wings (32) and the welding pad (31) form a U-shaped welding groove (33); B, under a normal temperature state, a tin wire (4) is pressed in the welding groove (33), the tin wire (4) is tightly connected to a groove wall (33a) of the welding groove (33) during a process of pressing in the welding groove (33), and a U-shaped accommodation groove (41) capable of accommodating a bare stranded wire (5) is formed on the tin wire (4); and C, the bare stranded wire (5) is put in the accommodation groove (41) and an outer peripheral surface of the bare stranded wire