Existence of racial, ethnic, linguistic, cultural diversity, in different countries committed their educational systems to respond decently & worthly to plurality & diversity of their communities and are considered decently in educational curriculum. Multicultural education, is an approach that, is adopted in response to cultural diversity in a society and its educational system. This study was aimed to investigate quiddity and reasons for considering the multicultural curriculum and identify its components. Research method was Qualitative and from the type of content analysis. To collect information all available sources of multicultural education in print and electronic libraries (valid databases) were used & was analyzed using the inductive category. The findings of this research along with specifying the necessities of multicultural education (Social Realities in Iran Society-the necessity to respect the human dignity of all human beings-The lack of multicultural education in the current educational system-Globalization & training requirements resulting from it-the need for training familiar teacher with the educational system of Multicultural Education) showed that, attention to multicultural education curriculum, at global and national situation is an inevitable necessity. At the end of the study, the components of multicultural education were identified. In summary, the following were noted: Anti-racism education, acceptance of diversity & plurality, peaceful coexistence with other groups, regarding educational justice, flexibility in educational programs, variety in using of teaching methods, and so, variety in using of educational materials, to protect minority languages.