To date, the research on Chinese figures residing or settling abroad and their residential settlements has mainly focused on trade merchants. Merchants frequently traveled abroad due to the characteristics of their occupation and were therefore more likely to reside in foreign countries for varying periods of time in the process. Song-era records that document figures staying overseas, however, largely center around intellectuals and bureaucrats who were trained in the Chinese systems of knowledge or administration, as opposed to merchants. Examining the records concerned, it is difficult to conclude that merchants accounted for the majority of overseas Chinese citizens at that time. This paper strived to focus on the emergence of people who looked for opportunities overseas as the background for the formation of Chinese communities in the Song period, as opposed to trade voyages by merchants. This situation is clearly revealed through the Song's ban on overseas travel for those with different traits from merchants. This indicates that the emergence of people who sought to journey abroad for new opportunities had begun even before 1078. As Chinese citizens sailed abroad to look for new opportunities, Chinese communities began to form in foreign countries around the twelfth century.