Abstract: Continuous cultivation of tobacco has brought a series of problems to the healthy and sustainable development of tobacco production. Exploring the intercropping planting mode of“tobacco+N” has become a powerful measure for the tobacco industry to implement the strategy of adhering to the red line of arable land and ensuring food security. This article provides a review of the“tobacco+N” intercropping model in improving tobacco soil quality, improving field microclimate, reducing the occurrence of pests and diseases, as well as enhancing tobacco yield, quality and average comprehensive benefits, and analyzes the problems existing in the current intercropping model and provides prospects for the future work and research.