The invention discloses a line-winding-speed control method of a squid angling machine. An angling-machine line-winding-speed control system is composed of a wound-unwound line length detection module, a tension detecting module, a PLC digital controller, a digital amplifying circuit, a servo motor and a rolling wheel. The line-winding-speed control method is characterized by including the following steps that the speed of a rotating shaft for lifting of the rolling wheel is set as the nominal speed; according to target catches and specific sea areas, an m/M value is set, wherein M is the total mass sum of all squids on an angling line and the absorbed water amount, and m is the total mass sum obtained in the mode that the sea water amount sprayed by a squid is subtracted from M; whether the position of a fishhook is located above the water surface is detected, whether squids have water spraying behaviors or not is detected, and the nominal speed is detected; according to the detection result, the line winding speed of the squid angling machine is controlled.