Being a traditional immigrant country，the legislative principle of Canadian immigration laws is to attract more immigrants，whereas the U.S. immigration laws have thrown up a great many barriers for new immigrants though it is a country of immigrants as well. The U.K. immigration laws were in the beginning highly inclusive，but have recently become used to be inclusive at the very beginning but developed to be more exclusive. within the recent years. While Germany is commonly seen as a country lacking immigration policies，the Federal Republic actually issued its first “Immigration Laws” over a decade ago，in 2004.，while commonly perceived as a country without immigration policies，issued its first 〈Immigration Laws〉 in 2004. In France，immigration laws are characterized as both inclusive and exclusive. Australia has established a complete system of immigration institutions and is continuously softening the restrictions on entry into the country in order to promote its national economic development. Similarly，New Zealand includes immigration laws as part of its fundamental population policies. Comparative study Thof the immigration laws of developed nations，then，is of vital theoretical and practical significance for China，as such work will help it better communicate and interact with foreign countries，while also improving Chinese as well as improve China’s entry and exit regulations and immigration laws with the aim of boosting the country’s economic development，in order to facilitate Chinese social economy..