An LC oscillator process compensation circuit includes an LC oscillator, a reference voltage terminal, a follower and a current auxiliary circuit, the LC oscillator includes a gain stage, an inductor and two voltage-controlled capacitors, the gain stage includes a first Field Effect Transistor, a second Field Effect Transistor, a third Field Effect Transistor and a fourth Field Effect Transistor, the current auxiliary circuit is connected with an external power source and the follower that connected with the reference voltage terminal to provide a working voltage for the LC oscillator, the follower includes a detection circuit to detecting current changes of the gain stage. The LC oscillator process compensation circuit has simple circuit structure and eliminates frequency changes of the LC oscillator caused by the process variations of the gain stage, thereby ensuring stability of the frequency of the LC oscillator, improving work precision and reducing design difficult.