The utility model discloses a limiting bookbinding device for financial bills. The bookbinding device comprises a bookbinding platform, a limiting baffle, a T-shaped sliding rail, a limiting sliding block, a supporting stand column, a fixing screw, a welding sleeve, a positioning sliding rod, a positioning sliding block, a limiting clamping plate, a punching needle, a pressing plate, a reset elastic piece and supporting legs. According to the utility model, the limiting baffle plate and the T-shaped slide rail are arranged in a mutually perpendicular limiting manner; financial bills of different sizes can be orderly arranged at the top of the bookbinding platform; the stability of financial bill punching and bookbinding is ensured; the position of the limiting sliding block on the T-shapedsliding rail and the position of the positioning sliding block on the positioning sliding rod are adjusted; and the longitudinal and transverse positions of the punching position of the punching needle are adjusted, so that financial personnel can adjust the punching and binding position according to the thickness and size of financial bills arranged at the top of the binding platform, and the punching and binding accuracy of the financial bills and the convenience of punching operation are guaranteed.