Abstract: A paper clamping mechanism includes a base, a first driving, assembly, a first driven assembly, a first clamping portion, and a second clamping, portion. The first driving assembly, is fixed on the base. The first driven assembly is fixed on the base. The first clamping portion is fixed on the base via the first driven assembly. The second clamping portion is fixed on the base via the first driven assembly. The first clamping portion is arranged opposite to the second clamping portion, the first driven assembly is able to drive the first clamping portion to move close to the second clamping portion to clamp a paper, and the first driven assembly is also able to drive the first clamping portion move away from the second clamping portion to release a paper.