All solid-state continuous-wave yellow laser at 572 nm is firstly reported.The yellow laser is from two Nd∶YAG line of 1444 nm and 946 nm have a non-linear sum frequency,the two lines corresponding to energy levels in their respective crystal transition for 4F3/2-4I15/2 and 4F3/2-4I9/2,respectively,the yellow laser at 572 nm is obtained by using a doubly folded-cavity,type-Icritical phase matching LBO crystal intra-cavity sum frequency mixing by 1444 nm and 946 nm.When injected into two Nd∶YAG crystal for the pump power 24 W and 14.8 W,respectively,TEM00 mode yellow laser at 572 nm of 592 mW is obtained at last.The power stability in 4 h is better than ±3.6%.