Cable connection method

The invention relates to a cable connection method. The cable connection method comprises the following steps that a cable connecting section penetrates through a plug and is inserted into an accommodating cavity, and a body is in butt joint with the plug; a bonding body is infused into the accommodating cavity through an infusion channel until the bonding body completely occupies space in the accommodating cavity and partially fills in a ventilation retraction sealing structure; when the bonding body is cooled and solidified from a flowing state to a solid state, the volume of the bonding body is reduced, so a gap is formed in the accommodating cavity, and at the moment, the bonding body in the ventilation retraction sealing structure retracts into the accommodating cavity to fill in the gap generated by the shrinkage of the bonding body in a cooling and solidification process; and different cable connection sections needing to be connected are respectively installed on different connectors, and then the dif