A foreign worker is a person who works in a country other than the one of which he or she is a citizen (Wikipedia). Migrant workers can work within their own state or across states, depending on the definition applied. Some foreign workers are present temporarily and legally under a guest worker program in a country with better employment prospects than their home country. Some turned out to be illegal immigrants. Foreign workers live temporarily in the country where they work and often send most or all of their earned wages back to their home country. Workers can be classified into high-skilled workers or low-skilled workers and unskilled workers. These foreign workers can also be classified into legal workers and illegal workers. However, these foreign workers can also bring certain positive contributions in addition to having negative effects on our country. In Canada, foreign nationals are accepted into Canada on a temporary basis for a number of reasons, including student visas, applications for refugee status or special permits. The largest group, however, is called the Temporary Foreign Worker Program, where workers are brought to Canada by their employers for specific jobs. In 2006, there were a total of 265,000 foreign workers in Canada. Among those of working age, there was a growth of 118% compared to 1996. By 2008, the number of non-permanent immigrants had caught up with the number of permanent immigrants. Current estimates of the total number of international foreign workers are around 25 million, with a corresponding number of dependents accompanying them. About 14 million foreign workers live in the United States, making most of its immigrants come from Mexico, of which 4 or 5 million...... middle of paper ...... gives the impact on the change in local societal culture. The effect on the variation of culture and language is due to the fact that these foreign workers have formed a social organization and their own culture. It can also have an impact on local society, particularly among adolescents and children. It may not be good for the growth of children and adolescents in such a bad environment. They may be involved in criminal activities. In addition to this, such negative assimilation and acculturation of culture will lead to socio-cultural problem such as high HIV infection among the population of the country. This will affect medical costs, strained public health and public sector finances. In conclusion, we ensure that the hiring of foreign workers brings significant improvements, improvement, but also positive and negative consequences on the life of the cultural society of the country..