Her research interest is mainly focused on cellular and molecular mechanisms of asthma and chronic obstructive pulmonary disease (COPD), understanding and developing therapies. Her major research contributions have been in the understanding of the development of b2-agonist tolerance, and the interaction between glucocorticoid receptors and b2-adrenoceptors in the intracellular signaling pathways leading to the combination therapy of long-acting inhaled b2-agonist and inhaled glucocorticoid (e.g. SymbicortÒ and SeretideÒ). She is an internationally recognized scientist in the respiratory field. She has collaborated with academic researchers, both locally and internationally on cross-disciplinary projects. She is the principal investigator and co-investigator of a number of research projects funded by RGC, HMRF and NSFC.