Early nuclear power plant components were normally made with stainless steel AISI 316L due to its good anticorrosion property. After long time running,316L nuclear components are facing severe intergranular stress corrosion under rigorous radiation conditions. To rejuvenate the as-eroded 316L components is vital for long-term sustainable and safe operation of the nuclear power plants. It is approved that the resistance to intergranular stress corrosion cracking and intergranular attack is significantly dependent on the Cr content in the material. In this paper,the coating was deposited by CO₂ and Nd∶YAG laser using Inconel 690. Investigation on main influence factors on the Cr content in the coating including the dilution rate,laser types,beam energy distribution and laser processing parameters,were discussed. A rectangular beam can achieve low dilution,high Cr content and high deposition efficiency than a Gaussian beam. The coating produced by Nd∶YAG laser shows more excellent properties than CO₂ laser.