The aluminum flyers with 5.5 μm thickness and 0.5～0.8 mm diameter have been driven successfully by mini size YAG laser in the energy range of 100～300 mJ. The average velocities of flyer were up to 6.6 km/s, and the relationship between flyer velocities and energy density has been obtained in experiments. The analysis to the recovery samples showed that the flyers have good figure during the process of flying. The whole process can be simutate by using Gurney theory and Lawrence model and the academic results are in good accord with the experimental results.