In this life we are created to live and to believe, living and communicating with each other created the belief of culture transmission. People who speak various languages usually end up with an influence of their dialect on the foreign languages. This work is a research about the Algerian dialects influence on the English language as a foreign language in the country. Algerian dialects interfere at the level of speaking a foreign language and thus prevent the correctness of the message that will be transmitted. This work is a case study concerning language specialists, English language teachers of all level speech's have been analysed to show the influence of their dialects. However, in this work, it has been mentioned other cases in the other countries for instance: The case of Manchester, Chinese and Joseph Conrad Dialects effect on the language use. Pedagogical solutions has been suggested to solve this problem, you can discover it by reading the book.