The present disclosure provides a camera assembly and a mobile terminal. The camera assembly comprises a fixing frame, a support device, a guiding device, a camera module and a second magnetic structure. The support device has a first magnetic structure. The guiding device is connected to the fixing frame and the support device, respectively. The support device is slidably connected to the fixing frame by means of the guiding device. The camera module is arranged on the support device. The second magnetic structure is used for generating a magnetic field, and the second magnetic structure interacts with the first magnetic structure to apply a force to the support device in the sliding direction of the support device for sliding the support device. The support device slides under the guidance of the guiding device.