This study explores the use of bibliometric analysis, text mining, and topic modelling to review the literature on cereal-legume intercropping. The research aims to identify knowledge gaps and future research opportunities in this field. The analysis was conducted on a corpus of 4,732 papers retrieved from Web of Science and Scopus, focusing on both common and underutilized crops such as wheat, soybean, buckwheat, lupin, triticale, oat, and pea. The results show an increasing trend in the number of papers published, with most studies originating from China. The main crops studied are maize and wheat, while soybean and pea are the most popular legume partners. Yield and nitrogen fixation are the most commonly studied traits, and there is a growing interest in climate resilience, sustainability, and biodiversity. The term "ecosystem services" has also gained attention, with regulating and provisioning services being the most studied. The study identifies several research gaps, including the underutilization of underutilized crops like lupin and buckwheat, the need for more research on disease, pest, and weed management, and the exploration of additional benefits of intercropping systems. The findings highlight the importance of incorporating a wider range of crop types and underutilized crops to enhance sustainable agriculture and biodiversity.This study explores the use of bibliometric analysis, text mining, and topic modelling to review the literature on cereal-legume intercropping. The research aims to identify knowledge gaps and future research opportunities in this field. The analysis was conducted on a corpus of 4,732 papers retrieved from Web of Science and Scopus, focusing on both common and underutilized crops such as wheat, soybean, buckwheat, lupin, triticale, oat, and pea. The results show an increasing trend in the number of papers published, with most studies originating from China. The main crops studied are maize and wheat, while soybean and pea are the most popular legume partners. Yield and nitrogen fixation are the most commonly studied traits, and there is a growing interest in climate resilience, sustainability, and biodiversity. The term "ecosystem services" has also gained attention, with regulating and provisioning services being the most studied. The study identifies several research gaps, including the underutilization of underutilized crops like lupin and buckwheat, the need for more research on disease, pest, and weed management, and the exploration of additional benefits of intercropping systems. The findings highlight the importance of incorporating a wider range of crop types and underutilized crops to enhance sustainable agriculture and biodiversity.