In the following years, he worked in various schools and universities as a professor and director; he also founded and presided over the Collège Berbère d'Azrou.
During his time in Morocco he collected and studied an enormous amount of Shilha and Central Atlas Tamazight texts and manuscripts with the help of his Berber assistant Si Ibrahim al-Kunki (b.
He also worked together with the egyptologist Bruno Stricker on an edition and translation of Baḥr ad-dumu (Ocean of Tears), by Muḥammad Awzal, which was published in 1960.
After his death in 1971 his descendants donated his library to the Institut de Recherches méditerranéennes in Aix-en-Provence, where the Fonds Arsène Roux is still administered today.
A catalogue of the Arabic and Berber manuscripts has been prepared by van den Boogert (1995), while the other texts have been indexed in Stroomer & Peyron (2003).