In recent years the research of the ablation process of femtosecond laser is becoming more and more widely. Study means increasingly update, the ablation medium types also gradually increased, to detect the active the ablation process of femtosecond laser mechanism is becoming a hot spot of research. Femtosecond laser ablation process is a complex physical process including a variety of dynamic mechanism. When the femtosecond laser ablation of crystal materials, can form micro plasma. Many usually plasma diagnostic methods, such as high-speed photography method, the beam deflection method, holographic interferometry, time-resolved shadow figure method, etc. For femtosecond laser ablation crystal materials produce micro plasma kinetics research, many researchers at home and abroad due to the current laboratory equipment, conditions, constraints, and the study of the shearing section. At fast process is relatively small, the development process of laser induced shock wave in the early research is relatively weak. In view of the above limitations, this paper using the high-speed photography method to carry out the dynamic characteristics of the femtosecond laser ablation process of research, at the same time, explore a kind of high spatial resolution, response rate and the sensitivity of the new technology means and methods, dynamics of femtosecond laser ablation of crystal material characteristic carried on the thorough analysis and research.