Method for repairing deficiency of additive manufacturing high-temperature alloy product

The invention relates to an additive manufacturing high-temperature alloy product shortage repairing method, belongs to the field of additive manufacturing product repairing, and solves the problem that a high-precision thin-wall area of a high-temperature alloy is difficult to repair in the prior art. An additive manufacturing high-temperature alloy product shortage repairing method comprises the following steps that S1, an additive manufacturing product is subjected to three-dimensional scanning and comparison, and a product shortage area and thickness characteristics are confirmed; s2, carrying out mechanical polishing and cleaning on the lacking area; s3, a handheld laser device and a welding wire are adopted for conducting filling repair welding on the vacancy area, and the vacancy is repaired; s4, performing X-ray detection on the repaired position; s5, heat treatment is conducted on the product obtained after repair welding; s6, machining the surplus height of repair welding; and S7, carrying out fluor