Preparation method of medical high-performance antibacterial titanium alloy plate

The invention discloses a preparation method of a medical high-performance antibacterial titanium alloy plate. The method comprises the following steps: 1, smelting by adopting a vacuum magnetic suspension induction smelting furnace to obtain a titanium alloy cast ingot; 2, removing a dead head and defects from the titanium alloy cast ingot, grinding the titanium alloy cast ingot into a cylindrical ingot, annealing the cylindrical ingot, and then carrying out isothermal forging and pressing to obtain a refined grain plate blank; 3, carrying out low-temperature annealing treatment on the grain-refined plate blank, then carrying out warm rolling, and then carrying out leveling and acid pickling to obtain a plate; and 4, wrapping the plate, and carrying out accumulative ply rolling to obtain the medical high-performance antibacterial titanium alloy plate. According to the method, vacuum magnetic suspension smelting is combined with two-phase region large-deformation isothermal forging, so that the titanium alloy