The dental clamping ring has a high-elastic memory alloy clamping ring and a child-used clamping ring. The former consists of U-shaped alloy spring clips and plastic chucks. The material are titanium-nickel memory alloy and PC plastic, which have strong clamping force, super-elasticity, memory, corrosion resistance and biocompatibility. The child-used clamping ring is mainly used for children or patients with small teeth. It consists of a clamping arm and a handle. The material is PC plastic. It has light texture, good elasticity and comfortable clamping.