A method for wireless network design and an apparatus therefor are provided. The method includes receiving a ray path analysis request for a target area for a wireless network design, configuring a first area corresponding to an analysis range of the target area, in consideration of a position of a first base station (BS) and a direction of a ray transmitted by the first BS, configuring a second area along a layout of a first road running on a line extended from the first BS, within a range of the configured first area, performing analysis on a path of the ray transmitted by the first BS in the second area, and transmitting a result of the analysis.