Provided is a method for controlling information shared in a virtual world by a server and a plurality of users' client terminals connected to each other through a network. In this information control method, a computer creates a third object between a first object and a second object in the virtual world when the first object and second object transmit communication information therebetween, and filters the information with the third object. In addition, when an object transmits visual information, the third object can be created around the object transmitting the visual information. The third object can be created as a pseudo wall.