内7优39是内江杂交水稻科技开发中心利用优质香型不育系内香7A与优质抗病恢复系内恢2539配制而成的杂交籼稻新组合，2012年通过四川省审定。内7优39在国家、四川省区试和展示示范中表现出综合农艺性状优良、产量高、稻米品质好、再生力强等特点。本文介绍了内7优39的选育经过、主要特征特性及栽培制种技术要点。

Nei7you 39 is a new indica hybrid rice combination, derived from Neixiang 7A and Neihui 2539, bred by the Hybrid Rice Science and Technology Development Center of Neijiang. It was registered and released to commercial production in Sichuan province in 2012. Nei7you 39 have high and stable yield, fine grain quality, strong blast resistance and wide adaptability, stong regeneration ability. Breeding process, characteristics and key techniques of planting and production of Nei7you 39 are introduced in the paper.