She is widely recognized for her archaeological work on Ugarit, where she conducted excavations for twenty years.

[1][2] Marguerite Yon led the Syro-French Archaeological Mission of Ras Shamra-Ugarit for twenty years, from 1978 to 1998.

[3] This period marked a significant discovery of numerous documents at the archaeological site, often referred to as a "miracle".

For instance, in Lebanon, she provided guidance and support to Lebanese archaeologists on specific issues.

[8] Marguerite Yon-Calvet earned the title of professor emeritus at Lumière Lyon-II University.