Ｄ２９７优６３是一个带有粳稻血缘的中晚稻兼用型杂优新组合，其产量比汕优６３略增或相当，但抗性较强，制种产量高、米质好、适应性广，近年来在全国及福建省稻区示范推广势头看好。文章论述了该组合选育过程、示范推广结果，及其高产制种与栽培技术要点。 D297 You 63 is a hybrid combination of medium and late rice with japonica heredity, its yield is slightly increased or comparable to that of Shanyou 63, but its resistance is strong, its yield is high, its quality is good and its adaptability is wide. In recent years, To the national and Fujian rice demonstration and promotion momentum. The article discusses the combination of breeding process, demonstration and promotion of results, and its high-yielding and cultivation techniques.