Tunable Fabry Perot resonator is a kind of optical devices widely used optical devices in optical communication, sensing and laser fields. Its tuning methods can be mainly divided into fiber-optic F-P cavity, micro-machine F-P cavity and electro-optic F-P cavity, each of which has corresponding advantages and areas of advantage. In this paper, the development of tunable F-P cavities is reviewed including device structure and performance parameters.In the end, the performance differences and the future directions of tunable F-P cavities is are discussed.