E-learning has become an increasingly popular form of training throughout the world for both students and teachers. Several Moroccan universities have therefore launched e-learning courses. Abdelmalek Essaâdi University, on his part, is involved in a project called "MarMooc" funded by the European Union and aimed at the production of MOOC and SPOC at the national level. The content of e-learning courses will be done by university's teachers, which led us to reflect of their involvement to this project and what are the barriers to e-learning adoption related to them. In this article we will present a survey conducted by questionnaire with both open and closed questions in order to study factors influencing e-learning adoption by higher education's teachers in Morocco, especially Abdelmalek Essaâdi University's teachers. The analysis of responses to open-ended questions, of correlations and principal component analysis revealed following factors: institutional factors, teacher-related factors and Students' factors. The main limitations of our study are the small sample size and the non-representativeness of the female gender, which makes up only 20% of the sample.