Abstract: The GH4169 alloy was prepared by selective laser melting technology. The effects of different solution temperatures and double-aging heat treatment on the microstructure, mechanical properties at room temperature and high temperature durability of as-deposited GH4169 alloy were studied by using optical microscope and tensile testing machine. The results show that when the solution temperature was 1130 ℃ and 1200 ℃, the carbide was precipitated and dissolved respectively at the sedimentary grain boundary of GH4169. In terms of mechanical properties, with the increase of solution temperature, the performance difference between horizontal and vertical printing directions was reduced. When the solution temperature was 1130 ℃, the carbide precipitation played a strengthening role, which made the room temperature tensile properties and high temperature durability properties of as-deposited GH4169 reach the level of forging.