In this paper, a new high-strength corrosion-resistant titanium alloy is taken as the research object, and its titanium alloy hot-rolled sheet is subjected to different solution aging heat treatments. The effects of solution aging processes on the microstructure, texture, mechanical properties and corrosion resistance of titanium alloy sheets were studied. The results show that when the solution temperature is increased from 900 ℃ to 930 ℃, the equiaxed α-phase and β-transformed structures are significantly increased, and they are all equiaxed morphologies. When the solution temperature is increased to 960 ℃, the equiaxed α-phase and β-transformed structures decrease, and a large number of needle-like secondary α-phases appear, and the structure changes from the equiaxed structure to the dual-state structure. With the increase of solution temperature, the strength and hardness of the plate increase, and the plasticity gradually decreases, while the corrosion current density and corrosion rate show a trend of decreasing first and then increasing. After the Ti603 titanium alloy plate is treated at 900 ℃ for 30 minutes and aging at 580 ℃ for 3 hours, it has the best comprehensive mechanical properties and good corrosion resistance.