Abstract: Western countries have always been a solid supporter for the theory of national recognition in the international law.A research points out that America and European countries have added to the content of those regulations of national recognition after the cold war with democracy and human rights.However，from the perspective of validity in mechanism the author analyzes the 38 political entities appearing after the cold war，and finds that those regulations are not effective because they are not the key factors in American and European decisions of whether to admit those political entities or not.These regulations didn′t change the behaviors of those political entities，either，not improving freedom in the political entities.On the contrary，the traditional national recognition standards are still necessary to gain the acknowledgement of America and European countries，such as the residents，definitive territory，government and sovereignty ，which is due to the special feature of national recognition mechanism.

Key words: national recognition, international mechanism, validity, human rights, international laws