A method of measuring channel information using a terminal in a communication system, according to an embodiment of the present invention, includes the steps of: receiving channel measurement setup information from a base station; entering an idle mode in the state of communication with the base station; measuring information indicating according to the channel measurement setup information; and transmitting a signal including the measured information to the base station. In addition, a terminal for measuring channel information according to another embodiment of the present invention includes: a transmitting/receiving unit for receiving channel measurement setup information from a base station; and a control unit for controlling the terminal so that the terminal enters an idle mode in the state of communication with the base station and measures information indicating according to the channel measurement setup information, wherein the transmitting receiving unit transmits a signal including the measured information to the base station. According to an embodiment of the present invention, it is easier to identify a channel state by using an MDT measurement result by further reporting various pieces of information when measuring MDT. In addition, it is possible to perform a report on MDT measurement by using a terminal and thus the need for a drive test may be reduced.