The gastroesophageal reflux presence in asthma has been the subject of many studies indicating their frequent coexisting. The essence of this correlation is not entirely clear and several hypotheses can be found in literature. Recently defined laryngopharyngeal reflux and studies on its impact on the course of asthma seem to bring us closer to understanding this issue. In the last years we gained access to the new diagnostic methods allowing direct registration of laryngopharyngeal reflux. This paper summarizes laryngopharyngeal reflux diagnostic possibilities including the most advanced technologies. It also evaluates published clinical studies, which investigated laryngopharyngeal reflux in asthma patients, both in adults and children.