A signal measurement method and a device for comparing measurement results of a serving cell and a neighbor cell in a wireless communication system are provided. The method includes receiving a resource restriction pattern including first pattern information that indicates specific subframes to be restricted in measurement of the serving cell, measuring the neighbor cell at a first frequency band, measuring, if a predetermined condition is met, the serving cell applying the first pattern information, and measuring, if the predetermined condition is not met, the serving cell without applying the first pattern information and performing evaluation by comparing a serving cell measurement result obtained from measurement of the serving cell with a neighbor cell measurement result obtained from measurement of the neighbor cell.