Camera anti-shake device

The invention provides a camera anti-shake device which comprises four anti-shake units respectively arranged at four corners of a square camera module. The anti-shake unit comprises a fixing support fixedly connected with one corner of the camera module, an anti-shake support fixedly connected with the mobile phone body, a first shape memory alloy spring arranged transversely and a second shape memory alloy spring arranged vertically, and the fixing support is movably matched with the anti-shake support. The two ends of the first shape memory alloy spring and the two ends of the second shape memory alloy spring are connected with the fixing support and the anti-shake support respectively. By arranging the anti-shake units at the four corners of the camera module, the situation that buffering and anti-shake cannot be achieved when the corners of the camera module shake is prevented, when the camera module integrally translates, the four corners can be stressed for buffering and anti-shake, and under the actio