Using the MoSe2 nanoflower prepared via a facile hydrothermal reaction, we firstly realized the 1 mu m and 2 mu m passively Q-switched bulk state pulse laser, as far as we know. Using the Yb:GdMgB5O10 crystal grown by TSSG method as the gain medium, the 446 ns pulses are yielded at 1062.8 nm with 91.8 mW of output power and 1.222 mu J of pulse energy. Besides, based on Tm:YAP crystal, the 360 ns pulses are yielded at around 1936 nm with 466.3 mW of output power and 3.615 mu J of pulse energy. Our results exhibit this MoSe2 nanoflower could be a promising broadband saturable absorber for bulk state laser.