The invention relates to the technical field of spinning and twisting, and discloses a spinning and twisting mechanism capable of improving the strength of the twisted yarn, comprising a casing, a drive screw is rotatably connected to the right part of the casing, A transmission gear is rotatably connected to the upper and lower parts of the driving screw in the inner cavity of the casing, a yarn winding roller is fixedly connected to the front end of the transmission gear, and a symmetrical yarn release roller is rotatably connected to the left part of the inner cavity of the casing. , the top and bottom of the inner cavity of the casing are fixedly installed with a twisting body. The spinning and twisting mechanism, which can improve the strength of the twisted yarn, gradually increases the thickness of the yarn on the winding roller, so that the abutment rod abutting on the winding roller will be forced, and will correspond to a The symmetrical telescopic column on the side is squeezed apart, so that the guide column drives the winding roller to rotate and wind the cable, and then the bearing disc drives the paraffin disc to deflect and apply wax, so that the yarn strength after twisting is effectively improved.