This research focuses on the phenomenon of diversity and multi-culture through the work environment of the ministry of industry, through the behavior of individuals and how different the culture and the diversity of ideas, skills and creativity and its impact on performance. The researcher depends on a sector of workers at the ministry of industry consisted of (150) workers on top of their work during the sixth month of the current year (2013) in order to identify the impact of the manifestations diversity (both demographic and cultural in this environment) on the performance of workers. The researcher used the analytical method and descriptive manner in the analysis of data prepared in accordance to juried survey and is composed of two main pillars, first of the manifestations of diversity (demographic and cultural) in the work environment, and the other of productivity, using certain statistical methods: Test (T-TEST) for two independent samples, and testing of variance (ANOVA), and the alpha-Cronbach coefficient to test the stability of scale search tool. The search found the following results: - The manifestation of the demographic diversity does affect positively the performance of workers at the ministry of industry except for the working status doesn't affect the performance.- The manifestation of the demographic diversity affects positively the productivity of workers at the ministry of industry. The researcher recommends the following: - The need to absorb the concept of aspects of demographic diversity and cultural diversity as an important concept in the present time in all public sectors. -The necessity of activating the role of human resources management at the ministry of industry.