In this paper,using LBO crystal as intracavity frequency doubled element,a CW Nd:YVO 4/LBO 671 nm laser was operated firstly,then intracavity frequency doubled operation in all solid-state acousto-optically Q-switched Nd:YVO 4/LBO 671 nm laser.The pulse width of frequency doubling are obtained in 138 ns,peck power in 280 kW.This laser can be use to pump fluoride doped Cr 3+.