Abstract: A method for predicting radio-wave propagation loss values of points located in a service area of a base station, includes the steps of: (a) calculating radio-wave propagation loss values of points located along with initial and next radial lines based on parameters defined by a user; (b) designating one of initial missed points as a target point; (c) searching first and second mapping points; (d) calculating radio-wave propagation loss values of the first and second mapping points; (e) calculating radio-wave propagation loss value of the target point by using the radio-wave propagation loss values of the first and second mapping points; (f) designating another initial missed point as the target point and repeating said steps (c) to (f) until radio-wave propagation loss values for all the initial missed points are calculated; and (g) designating the next radial line as an initial line and repeating said steps (a) to (g) to calculate the radio-wave propagation loss values of the radial points located on the ra