From 2009 until 2014, she served as a Member of the European Parliament, representing the Massif Central-Centre constituency.

In the 2017 French legislative election, Auconie won her seat after beating the sitting MP and former Minister of Social Affairs Marisol Touraine in the second round of voting.

[2] In addition to her committee assignments, Auconie has been a member of the French delegation to the Parliamentary Assembly of the Council of Europe since 2017.

In this capacity, she serves on the Assembly's Committee on Social Affairs, Health and Sustainable Development.

[5] In 2020, Auconie criticized France's Citizens Convention for Climate “a rather questionable operation organized by President Emmanuel Macron, which suggests that there are no democratic institutions in France.”[6]