Maize and cotton are two crops that are highly produced in North Benin. Their production has advantages as well as constraints. These advantages and constraints are taken into account in the choice of the producer to cultivate one of them. The objective of this study is to present, at first, the advantages and constraints that the producers of Kandi commune face on these two crops. It also aims to expose the producers' preference according to the advantages and constraints listed by them. To achieve this, the data were collected in two districts of the municipality over a period of two weeks. Semi-structured interviews were conducted with fifty producers through an interview guide. Data processing was carried out using a dual approach (quantitative and qualitative) which, on the one hand, consisted in carrying out statistical tests and, on the other hand, analyzing the statements collected during the data collection. The main statistical test used in this study is Kendall's W-concordance test, which has been used to prioritize constraints. At the end of the analyses, it appears that cotton, just like corn, enables producers to meet the needs and social development of their households. On the other hand, the non-organization of the maize sector, the lack of inputs and the delay in their distribution, maize prices fluctuation and difficulties in the evacuation of cotton are the main constraints reported by producers. Despite its lack of organization and the other constraints to which it is subject, maize crop is the most preferred. In view of this, it would be appropriate to consider the organization of the maize sector and the optimization of the services provided by the organizations in charge of the cotton sector. This will be beneficial to both production systems and also to all actors involved.