The difference cultural backgrounds could cause the friction and conflicts. It is caused by individual differences, differences in understanding and expectations. Whileintercultural communication is bridge over the difference between communicator and communicant different culture. Intercultural communication applied between ethnic java and chinese in kelurahan sudiroprajan.In kelurahan sudiroprajan with the community different culture that is the social integration of two. The purpose of this study is there any influence significant of the intercultural communication to social integration between ethnic java with ethnic chinese in kelurahan sudiroprajan. This research used intercultural communication and social integration. Intercultural communication measured in terms of the extent to which the involvement elements of intercultural communication namely a communicator, communication, a message, media, the effects and disorder. Social integration measured by cooperation, accomodation, assimilation and acculturation. The kind of research this is quantitative eksplanatif by survey method using questionnaires.Research sample is 100 respondent of ethnic java and chinese in kelurahan sudiroprajan. Data analysis techniques used in the study is simple linear regression. The results of the testing of hypotheses using analysis regression linear simple obtained the value thitung> ttabel (10,755 > 1,984) on significance level of 5 percent so that Ho rejected. It means intercultural communication influential significantly to social integration beetween ethnic java and chinese in Kelurahan Sudiroprajan
