In the process of globalization, at present the number of immigrants who enter Korea rapidly increases. Since the establishment of nation by the Korean Government, Korea has been a country which transfers the laborers into the construction of Middle East countries and students to study-abroad program all over the world until the early 1990 years. However the country turns into an organizational structure where imports human resources with the success of completing industrialization. Such this phenomenon is simply not only limited to be in the third dimensional industry but also both in the interracial marriage and the trend of increasing the number of bolters from North Korea. In Korea, the population of multicultural residents is recently 1.45 million. Additionally the number of multicultural families has been steadily increased up to three hundred fifty thousand. They have given birth to babies with Korean citizenship as well. As researching about the trend of the multicultural youths who reside in Korea, the immigration from foreign countries, the second marriage of a single parent, the breakaway from North Korea and illegal residence contribute to create such a many multicultural youths in Korea. The multicultural youths have several troubles adapting to the Korean Society. Firstly, it is deficiency of self-esteem caused by their parents’ lacking education. The multicultural children’s parents who support them suffer from economic deficiency, low social status and society’s bias toward the multicultural family. The fact absolutely causes them losing academic capability to accommodate themselves to Korea’s school system. Secondly, it is the loss of opportunity to be affiliated intermediately to the public education system for the youth who just emigrated from foreign countries to Korea. In the end of 2008, the officially submitted report presented that the number of youth from foreign countries was estimated approximately ten thousand. But in fact the actual number of the youth was unofficially thirty thousand at that time. For the worst case those who are not registered in government have been still denied to attend public school in Korea. Thirdly, it is the socially psychological stress caused from a cultural shock. While multicultural women reside in Korea, they have been shocked from the difference between their own background and cultural environment. For they recognize the boundary between the major Korean group and the minor foreign group, they suffer from emotional conflict and severe depression. Such the conflict and psychological disorder have been transferred to their children naturally so that the multicultural youths consequently suffer from the same severe depression as their parents have. Fourthly, it is the deviant behavior caused from family violence. The issue related to multicultural families’ violence increases. As researching the statistic report “Comparing to the 2007 report the case of sexual and severe violence happened in the multicultural family was increased up to four times of it in the end of 2010. The violence in the multicultural family naturally has been leading the case of teenage runaway. As looking into the traits of the teenage runaway, those are low self-esteem, deficiency of confidence, sense of inferiority, sarcastic attitude, negative self-image, embarrassing attitude, frustration, and hardships to build the rust in relationship. By the factors described above, the multicultural youths have obtained the critical attitude toward reality. If emphasizing the older generation’s system and traditional custom to the youths, they definitely fall out to their own world in which they establish. Additionally the multicultural youths are sexually open-minded so that they just not only turn down the standard of ethics but also live the pleasure seeking life. In the case letting them to be such there should be socially severe problems. The social conflict of western multicultural countries such as Germany, France and England proves it as well. As a matter of fact the government attempts to remove the fundamental basis of the problems and resolve them through initiating various programs and integrated social welfare. However the attempt has been evaluated as having the limitation, for those kinds of traditional systematic program without love should limit the consequence. From the social perspective for multicultural youth, also for the future of Korea, from the religious perspective to share the gospel they require the ‘Welfare Propagandism’. According to it I, the author of this article analyzed most of articles related to the multicultural youths in Korea and investigated the cases with the insider’s perspective and various alternative missionary works through the welfare which solves these social problems and contribute to the society. I insist that the one who solves such the social problems is church, furthermore insist more strongly that the welfare designed for the multicultural youth finally realizes missionary works for all human beings. To accomplish this, firstly it requires the missionary works increasing their self –esteem through discipleship. All the youths face the external hazards, overcome the stimulations and oppression caused from internal reaction and sink into the pit of despair. The factor which leads the internal reaction is their self-respect. The urgent issue which must be discussed through the multicultural youth welfare is restoration of their self-esteem. Comparing to the ordinary Korean youth, their self-esteem is low. Their improvement of self-esteem must be accompanied with spiritual work as well. Secondly, the missionary work transferred from Church organization to integrate socially and locally in regional area is necessary. Charles Van Engen insists that the position of Church is interpreted in the relationship with the society not only as the one being or active existence in the world but also just participating in God’s mission to innovate the world. Therefore he mentioned that the Church isolated from the social community never exists and the Church which does not contribute to the community just forgot the Church’s true mission. Thirdly the educational missionary is required to help them attending to the upper academic courses. Their main problem of multicultural families’ education is weak reading, vocabulary, writing skills from the delayed language development. It also causes bullying in the class, psychological conflict and losing an opportunity to learn from private institute so that the alternative schools to complement their education must be established as soon as possible. Fourthly, I insist on the welfare missionary work for all human beings through occupation education. The ‘occupation education’ is an official or unofficial system which helps those in need searching all the occupation individually, choosing the proper occupation fitting into their own personal interest, aptitude and capability and developing professional knowledge, functions, attitude, understanding working habit and judgment of specific occupations. For the example of Yoido Full Gospel Church, one of the ministries, the Elim Occupational Education School educates the poor and weak people so that not only multicultural youths but also bolters from North Korea are educated as professionals through the organization. I, the writer of this article once more anticipate that this multicultural youth welfare realizes the growth of Korean church.