Ballistic missile's laser fuze is used to control warhead's blasting height. Battle environment for ballistic missile is complicated and tactical request is strict, so laser fuze equipped for it needs some special indices, such as high repetition rate, long ranging, etc. So a laser fuze scheme for ballistic missile is designed applying multiple advanced technologies, including Diode-Pumped Solid-State Laser(DPSSL), high sensitive detecting component, optimal background suppression, signal processing with anti-interference and target recogniting. The designed laser fuze has small size and weight, fine performance of anti-interference and high ranging precision. So the laser fuze can perfectly fulfill the request for ballistic missile's blasting height control.