The invention discloses a connection method for a self-locking crimping terminal knob, and the method comprises the steps: setting a crimping handle rod in a terminal knob box, wherein one end of thecrimping handle rod is provided with a crimping handle, and the other end of the crimping handle rod is located outside the terminal knob box; setting a transmission ratchet wheel below the crimping handle rod, and setting the transmission ratchet wheel in the crimping terminal knob box, wherein the transmission ratchet wheel is provided with a transmission ratchet wheel claw cooperating with thecrimping handle rod; setting an elastic piece on the transmission ratchet wheel, wherein the elastic piece is attached to the bottom of the crimping terminal knob box; setting a spring in the crimpingterminal knob box, wherein the spring is connected with the transmission ratchet wheel claw; and setting a through hole on the crimping terminal knob box. The beneficial effects of the invention arethat the method can improve the operation flexibility and smoothness of the operation of the crimping handle rod; the method improves the stability of the electrical connection; the method improves the crimping and removing smoothness; and the method improves the operation convenience and reliability of an electric energy meter line.