Heat treatment is an important method to improve the mechanical property of laser deposition repair GH4169 alloy. The effects of different heat treatment methods and aging heat treatment temperature on high temperature tensile properties of laser deposition repair GH4169 alloy are investigated. As compared with asdeposited (AD) samples, after the local heat treatment and vacuum heat treatment for laser deposition repair GH4169 alloy, microstructure of laser deposition repair GH4169 alloy changes little, the interdendritic Laves phase slightly dissolved. The high temperature tensile strength and yield strength of vacuum heat treatment samples are slightly higher, reaching over 86% and 95% of the wrought standard of Q/3B548-1996, however, the elongation after fracture decreases slightly. After increasing the temperature of aging heat treatment, the Laves phase slightly dissolved further, the high temperature tensile strength and yield strength of repaired specimen are improved, reaching over 92% and 98% of the wrought standard.