Download Form I-130 from the USCIS website.
Fill out the form. Type or print legibly in blue or black ink. If an item is not applicable, you should mark it with "N/A" or "none" as appropriate. Make a copy of the completed form for your records.
Obtain copies of your birth certificate, your wife's birth certificate and your child's birth certificate, along with a copy of Form FS-240, Report of Birth Abroad of a Citizen of the United States, issued by a U.S. Embassy.
Contact the USCIS to determine the cost of applying for visas for your wife and child. Write a check or money order payable to the U.S. Department of Homeland Security. Do not use any abbreviations.
Mail the Form I-130, check/money order and copies of birth certificates to USCIS, P.O. Box 804625, Chicago, IL 60680-4107. Your return address must be in the U.S.
Once your Form I-130 is approved, the USCIS will issue U.S. visas for your wife and child.