In order to obtain pulse lasers with narrow pulse width, good waveform symmetry, and stable output performance, a 1064 nm double passively Q-switched laser based on graphene quantum dots and molybdenum disulfide was designed. The laser used a simple linear cavity structure, with 808 nm LD as the pump source and Nd∶YVO4 as the gain medium. Graphene quantum dots and molybdenum disulfide were obtained by hydrothermal method and lithium-ion intercalation method respectively. Saturable absorbers were prepared through spin coating and drying process, which were used as passively Q-switched devices. Compared with the single passively Q-switched laser, the output pulse width of the double passively Q-switched laser was narrower and the pulse waveform symmetry was better. When the pump power was 12.9 W, the pulse width of Q-switched laser was 180 ns, the repetition rate was 1085 kHz, the signal-to-noise ratio was 44 dB, and the average output power was 595 mW.