Abstract: The present invention relates to a packing for an infusion set. The infusion set for intermittent or continuous administration of a therapeutic substance, such as insulin, includes an infusion part having a cannula penetrating the skin of a patient and a connector which connects the infusion part with a medical device such as an adaptor for a syringe or an insulin pump. The insertion of the infusion part will be performed with an insertion needle which is delivered together with the infusion part under sterile conditions. The packaging includes an impenetrable part protecting the surroundings from the insertion needle and a removal part which is to be removed by the user before applying the infusion part. The inner surface of the impenetrable part is provided with a retainer for releasable retaining at least a part of the infusion set.