A new resonator which designed for doubly resonant continuous-wave intracavity sum-frequency mixing (SFM) laser is reported. Two Nd∶YVO4 were pumped by two laser diode array (LDA) which coupled by optical fiber respectively, 4F3/2→4I11/2 transition is chosen in one Nd∶YVO4 and 4F3/2→4I13/2 transition is chosen in another one, 1064 nm wavelength is gotten from 4F3/2→4I11/2 transition and 1342 nm wavelength is gotten from 4F3/2→4I13/2 transition,two laser beam oscillated in two sub-cavity. Considering thermal effect of laser crystal, a thermal insensitive cavity is designed, and type Ⅱ critical phase match (CPM) KTiOPO4 (KTP) is used to generate 593 nm SFM. 520 mW continuous-wave TEM00 yellow laser was obtained. The output beam is low noise, its M2 factor is less than 1.2, and the power instability is less than ±2％ in 24 hours.