The present disclosure provides a cable structure, a power cord structure and an electrical device. The cable structure includes: a power cord, a shell arranged on the power cord, and an antenna arranged in the shell. Because the antenna is arranged in the shell and does not need to be exposed to the outside, it works in a good environment and can be protected from being damaged easily and, thereby guaranteeing the working reliability and stability of the antenna. Because the shell is arranged on the power cord, the electrical device does not need to be provided with additional antenna devices, thereby improving the overall appearance, convenience for carrying and the user experience. The shell is arranged on the power cord, the position of the shell can be at the middle, the front or different positions depending on requirements of the power cord, therefore satisfying different user needs.