This study represents an initial effort to characterize what is known -and what is not- about how to prepare teachers for citizenship education in Mexico. This scantly explored question is necessary to transform said training, and consequently, to transform citizenship education. Using a qualitative approach and a hermeneutic method, the documentary analysis of a bibliographic selection was combined with the analysis of three in-depth interviews carried out with teacher educators with extensive experience in the field. One conclusion is that the systematized and substantiated knowledge on how to prepare teachers for citizenship education is limited. More can be inferred from what is known about its problems, such as its excessively theoretical nature, its dependence on the teacher preparators’ own experiences within the educational system rather than specialized or updated approaches, and the difficulties of practicing critical and experiential approaches to citizenship education in rigid and traditionalist contexts. However, the results also point to possible directions to reverse a status quo in teacher preparation which seems to persist despite successive educational reforms, including the current one.