This thesis discusses the role of the effectiveness of supervision of the residence permits of foreign workers in the region of class I Pontianak immigration office (a case study of foreign workers in PT Well Harvest Winning Tough River, District Kendawangan Ketapang). From the results of this thesis research we concluded that that Effectiveness Monitoring carried out by the Immigration Office Class I stayed Pontianak Against Foreign Workers Permits have been mostly ineffective due to very presence of violations in years 2014-2015, even though the relevant public has to supervise the workforce foreign accordance with the existing procedure only from foreign labor itself negligent, sometimes foreign nationals ignores the existing procedures at the Immigration office, causing their violations of immigration it can be shown by the violations such as: (a) Foreigners carrying out activities not suitable immigration permit (in accordance with article 122 paragraph a) 7 Case. (B) The foreigners do activities that endanger the security and order and does not respect the regulations (under Article 75) 2 Case. (C) Foreigners Stay Permit holders that have expired and are still in the Indonesian region of less than 90 (ninety) days of the deadline his residence permit. (Under Article 124) 4 Case. actors affecting oversight residence permits to foreign workers who work PT Well Harvest Winning that are in the working area of Immigration Class I Pontianak is Budget operational fund supervision is not appropriate, the lack of quantity and quality of the officer / officers / officials of immigration as a civil servant, a means and adequate infrastructure, as well as the Sponsor and TKA itself in obeying immigration rules and the role of the community as well as central and local governments in immigration law enforcement and supervision work area Class I Immigration Office of Pontianak City wide composed of 12 districts and 2 Cities. Efforts made by the Immigration Class I Pontianak in overseeing foreign labor is to provide direction and guidance to companies that did not submit a report on the whereabouts and activities of expatriate personnel, monitoring directly into the field where / location TKA are and their activities despite various limitations, and from time to time monitor or raids in cooperation with various authorities.