V3+∶YAG is a new type of saturable absorber. LD-pumped Nd∶YAG lasers passively Q-switched at 1.319 μm with a V3+∶YAG were reported. When the pump power was 1.6 W, the results of average output power of 93 mW and 192 mW, minimum pulse width (FWHM) of 7.9 ns and 9.2 ns, pulse repetition rate of 8.4 and 27.8 kHz, peak power of greater than 1.4 kW and 750 W, pulse energy of 11 μJ and 6.9 μJ were obtained for the small signal transmission of 89% and 96%, respectively. The stability of pulse energy and repetition rate was measured by the statistic function of the oscillograph. The results showed that the stability was better than 5% for 4 h.