To develop the technique preimplantation genetic diagnosis of glucose-6-phosphatase dehydrogenase deficiency. Materials and methods: Sanger sequencing was performed to detect the mutation in the blood samples of the couple, their daughter, and 05 embryos that were biopsied on the fifth day based on the findings of NGS sequencing of the affected son, combined conducting linkage genetic analysis using STR to provide diagnostic results and thereby completing the technique. Results: Preimplantation genetic diagnosis for glucose-6-phosphatase dehydrogenase deficiency has been completed, and we performed the method for a couple who had previously had a child with the enzyme defect. Consequently, one healthy embryo, three embryos with the variant G6PD: c.1376G>T (G6PD: p.Arg459Leu), and one affected embryo.