When the Institute of Beijing Studies in Beijing Union University was founded in 1998,Prof.HOU Ren-zhi wrote the inscription for the Institute: Be established in Beijing,Study Beijing,Serve Beijing,which set forth accurately the mission of the Institute.From then on,Prof.HOU has always been having the Beijing Studies at heart.His substantial results from and deep thinking for Beijing historical Geography are the firm base of Beijing Studies and guiding it forward.His academic thoughts and research spirit is influencing,guiding,and promoting the development of Beijing Studies all the time.