High-speed crochet machine is specially used to produce elastic and non-elastic, bra lace straps, garment straps, etc.; The equipment adopts a microcomputer control system, which is convenient for managing the main functions of the machine and controlling production data. The equipment adopts electronic data control system for warp let-off, yarn feed, bottom line feed, weft feed, and belt weft density, which can adjust the required data arbitrarily, without manual replacement of gears, free maintenance, and convenient operation. It can more conveniently and quickly edit patterns and corrections on the machine. The handwheel of the device adopts electronic handwheel, which is easy to operate, flexible, labor-saving and simple. The microcomputer crochet machine 600-B12 has an operating width of 600 mm. It uses crochet hook, and the worm gear box connected to the main shaft drives the flower drum and flower chain piece group to control the smooth movement of a weft bar and weave various webbing. According to production needs, the two weft bars can be driven by the rocker of the left auxiliary box. The two weft bars driven by the rocker of the 600B-widening device have a larger swing (up to 50mm) and can be used as special webbing. The pattern group is composed of involute chain blocks, which makes the crocheting function run at high speed, reduces the noise level, and reduces the vibration of the crocheting machine; The conventional model is 48 cycles, and 96 cycles are also optional.