The CNC system is equipped with a wired electronic handwheel as standard, due to the constraints of the connecting line, there are many inconveniences in the use process, especially for large gantry machine tools. Therefore, based on wireless radio frequency technology, a low-power, high-reliability wireless electronic handwheel for HNC-8 system was developed. The overall scheme design was carried out, then the signal acquisition circuit, transmission circuit and software module were developed, finally the functional test and verification of the wireless electronic handwheel were carried out. The relevant test results show that the wireless electronic handwheel has all the functions of the wired electronic handwheel, which is easy to operate, stable and reliable, and has good engineering application value.