Why did labors require Immigration restrictions based on race and ethnic factors in United States from the 19 th century to the 20 th century. It is commonly believed that labors led the making immigration restrictions policies based on such factors. However, it remains to be elucidated reason why labors required such restrictions. This study proposes that they originally did not have such require because their preference was based on only economic reason. They did not required racism but

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... ement of labor embroilments for them. This study analyzes the process of making the anti-contract law in 1885, the first attempt to regulate white immigrants. I focus on the statement that was used in the process of this, compared with Chinese immigrants who had been restricted based on race as naturalization impossible foreigner at that time. The results show labors did not require restrictions based on race or ethnic in spite of the fact that they had realized nationality of immigrants were changing. On the contrary, they criticized a parliament trying to justify this law based on the race of immigrants. Their interest directed at employment system not race or ethnicity. These results indicate that necessity to modify conventional interpretation on American immigrant study. This study suggests that we have to reveal why such restriction were required. We will be able to clarify the making process of American nations and national order by clearing up the factors that changed require of labors.