A high power continuous wave 1.34 μm Nd:GdVO 4 laser end pumped by laser diode array with plano concave resonator was reported. At the incident pump power of 14.75 W, the maximum output power of 4.62 W was obtained with the corresponding optical conversion efficiency of 31.3% and the average slope efficiency of 32.9%. By using the experimentally measured threshold data and slope efficiency, the stimulated emission cross section of Nd:GdVO 4 crystal was determined to be 1.95×10 -19 cm 2.