The application provides a key fixing structure, which comprises a shell, a
key frame fixedly arranged on the inner side of one side surface of the shell, a key hole arranged on the shell, a key arranged on the
key frame and protruding from the key hole, a soft single-sided
adhesive tape arranged on the
key frame, and a key plate arranged on the soft single-sided
adhesive tape and provided with a micro switch corresponding to the key. Through the cooperation of the shell, the key frame, the soft single-sided
adhesive tape and the key, the key does not need to be provided with a force arm and a hot melting and dispensing process, the stable installation and accurate operation of the key are realized, and the process and cost are saved.