The present invention generally provides a saw blade clamping assembly. The assembly has a main body, a clamping device, a rotating sleeve and a biasing device. The main body has a receiving slot for receiving a fixing end of a saw blade and an oblique and elongate hole communicating with the receiving slot. The clamping device has at least one clamping member passing through the oblique and elongate hole of the main body. The rotating sleeve encloses the main body and the clamping device. The biasing device is biased between the main body and the rotating sleeve.