This paper forecasts and monitors changes in the mother language education of the Korean-Chinese, which is done through a review of the Korean education suggestions made for those residing in China a decade ago. These Korean-Chinese are now closer to us than before due to China's openness and Korea-China diplomatic relationship. Approximately 800,000 Korean-Chinese relocated to Korea and are forming communities around cities with industrial complexes. Yanbian Korean Autonomous Prefecture is facing a crisis as an ethnic community now that only a third (around 800,000) of its original population is left. The ethnic identity is in turmoil as more and more Korean-Chinese are leaving to metropolitan areas in China and elsewhere around the globe. Korean-Chinese spread out in China need online education utilizing advanced information technology and Korean school movements for Korean language education. The ethnic identity education through the enhancement of exchanges among corporates, educational institutes, and local and national governments is also needed. In addition, ethnically educating the new type of Korean-Chinese who moved to Korea and are categorized as unprotected among multiethnic families and North Korean defectors is an objective to achieve with public and private sectors' coordination. (Yonsei University)