An apparatus and method of changing an access point in a wireless network system is provided. The wireless network system includes a first access point existing on a wireless network, and a user terminal accessing the first access point. The first access point transmits information on a second access point, which is one of a plurality of access points accessible by the user terminal, to the user terminal, and the user terminal determines whether to access the second access point and accesses the second access terminal in accordance with the determination result.