Abstract: 【Objective】 To review the application of gene editing technology in horticultural crops in recent years in the hope of providing a reference for the basic research and variety cultivation of horticultural crops. 【Methods】 The progress report of CRISPR/Cas9 technology in horticultural crops research was collected from domestic and foreign literature. After that the relevant analyses were summarized. 【Results】 Traditional breeding methods were difficult to meet the growing demand for yield and quality of horticultural crops, and CRISPR/Cas9 technology opened up a new way for its variety improvement, which would completely change the breeding pattern of horticultural crops, and make a significant breakthrough in resisting biological stress, responding to abiotic stress, improving fruit quality and crop domestication. 【Conclusion】 Great progress has been made in CRISPR/Cas9 technology in horticultural crop research and is an indispensable key technology for future breeding work.