The operatins characteristics of a 1064 urn sinsle-frequency tunable diodepumped Nd-doped (2%) YVO4 laser are described. Tuning is accomplished by means of a piezo-electric transducer (PZT) mounted on the output coupler for cavity length control and the laser crystal heatins. The laser has been tuned over a range of 47 GHz without mode hopping. The tuning coefficientS up to 150 MHz/V for PZT and temperature coefficientS -1.04 GHz/℃ for the gain center frequency are demostrated.