Seven potential controversial topics in agroecology are presented and discussed from a European perspective comparing the position of Agroecology Europe (AEEU) obtained from an iterative, participatory approach with members and compared with published literature, including views from other parts of the world. The seven controversial topics are: i) use of agrochemicals; ii) small-scale and peasant fanning versus larger farms; iii) technological innovations in agriculture and precision fanning; iv) biotechnology and genetic engineering in agriculture; v) local and short food circuits; vi) social justice; vii) gender perspective. The analysis shows that there are diverse points of view related to geographical area and sociopolitical contexts. However, there are several convergences towards the ambition of redesigning fanning and food systems, as a lever acting on several topics, and in considering agroecology with a holistic, participatory, multiactor approach for a transition that is needed.