Quasi-biweekly oscillation of atmosphere(QBWO) mainly indicates the 10-20 days oscillation on the time scale.It is one of important low-frequency systems of atmosphere and is found when the monsoon weather and its correlative monsoon systems are studied.QBWO can influence the lage scale long-range weather change and its anomaly significantly,which possesses global and multi-seasonal characteristics.This paper systematically summarizes the research results of QBWO in recent years,including the structure and active characteristics of QBWO,its influence on weather and climate and its trigger and maintaining mechanisms.On the basis,some prospects of further researches on QBWO are proposed.