diff --git a/app/api/justificatifs.py b/app/api/justificatifs.py
index 9c1fd00105..099d9e6c53 100644
--- a/app/api/justificatifs.py
+++ b/app/api/justificatifs.py
@@ -151,6 +151,48 @@ def justificatifs_dept(dept_id: int = None, with_query: bool = False):
     return data_set
 
 
+@bp.route(
+    "/justificatifs/formsemestre/<int:formsemestre_id>", defaults={"with_query": False}
+)
+@api_web_bp.route(
+    "/justificatifs/formsemestre/<int:formsemestre_id>", defaults={"with_query": False}
+)
+@bp.route(
+    "/justificatifs/formsemestre/<int:formsemestre_id>/query",
+    defaults={"with_query": True},
+)
+@api_web_bp.route(
+    "/justificatifs/formsemestre/<int:formsemestre_id>/query",
+    defaults={"with_query": True},
+)
+@login_required
+@scodoc
+@as_json
+@permission_required(Permission.ScoView)
+def justificatifs_formsemestre(formsemestre_id: int, with_query: bool = False):
+    """Retourne tous les justificatifs du formsemestre"""
+    formsemestre: FormSemestre = None
+    formsemestre_id = int(formsemestre_id)
+    formsemestre = FormSemestre.query.filter_by(id=formsemestre_id).first()
+
+    if formsemestre is None:
+        return json_error(404, "le paramètre 'formsemestre_id' n'existe pas")
+
+    justificatifs_query = scass.filter_by_formsemestre(
+        Justificatif.query, Justificatif, formsemestre
+    )
+
+    if with_query:
+        justificatifs_query = _filter_manager(request, justificatifs_query)
+
+    data_set: list[dict] = []
+    for justi in justificatifs_query.all():
+        data = justi.to_dict(format_api=True)
+        data_set.append(data)
+
+    return data_set
+
+
 @bp.route("/justificatif/<int:etudid>/create", methods=["POST"])
 @api_web_bp.route("/justificatif/<int:etudid>/create", methods=["POST"])
 @bp.route("/justificatif/etudid/<etudid>/create", methods=["POST"])