This research investigates the use of laser direct deposition for the repair of superalloy components, focusing on the repair of damaged GH4169 alloy parts with GH738 substrates. The laser direct deposition process was utilized to fabricate a GH4169/GH738 dissimilar material joint, and an analysis of its high-temperature mechanical properties and microstructure was conducted. The results showed that the tensile strength of laser direct deposited GH4169/GH738 joint at 650 ℃ reached 1 003 MPa, and elongation reached 16.8%; dense metallurgical bonding was formed at the joint cladding interface; the fracture mode of high temperature tensile presented ductile, and a large number of equiaxed dimples were formed on the fracture surface.