Beclomethasone dipropionate (BDP)-loaded PHEA-PEG2000-EDA-LA micelles were realised. These micelles show proper chemical-physical characteristics for lung administration. These micelles were able to permeate through the mucus layer into the lungs. In vitro experiments demonstrate that these micelles result highly biocompatible. These micelles increase drug uptake on 16-HBE compared to Clenil®.