In 1989, the Tiananmen Square massacre shocked the world. Under the heavy pressure from Congress and the public opinion, the government of the United States, which regarded human rights as one of its most cherished values, was forced to reexamine its relations with the PRC and to pay more attention to the PRC¡¦s human rights issues. However, the Cliton administration chose to de-link the human rights issue from its consideration whether to give the PRC the MFN status. To Beijing, the human rights issue is only a tool in Washington¡¦s foreign policy. China regards human rights as its domestic affairs. It had always questioned Washington¡¦s purpose and motivation to intervene mainland China¡¦s domestic affairs. This thesis studies the factor of human rights in the U.S.-China relations. U.S. Congress used MFN as an annual check about China¡¦s human rights situation. Before 2000, U.S. Congress members had long time questioned the administration that grantee PNTR would lead to the destruction of China¡¦s motivation about human right improvement. The author intends to review the ¡§Human Right Report¡¨ in the period of Cliton¡¦s administration, trade relations, UN human right debate and bills. Besides, the progress of China¡¦s human rights situation will be evaluated in the thesis. Through the review of the human right factor in the Sino-US relations, we can find that how the strategy of human right been used by U.S. government. However, the human right issue still is one of the important factors which could affect the future Sino-US relations.