To provide an antenna installation support apparatus and antenna installation support method which accurately determine a position to install an antenna communicating with a plurality of wireless communication devices, through simple processing, and to provide a program.

The antenna installation support apparatus 1 includes: a device position setting section for setting positions of the plurality of wireless communication devices as device positions, respectively; an antenna installation candidate area setting section for setting antenna installation candidate areas; a power distribution calculating section for calculating the distribution of power to be received in each of the antenna installation candidate areas, when transmissions are performed from the device positions using a preset radiation pattern; and an antenna installation position determining section for determining the antenna installation position on the basis of calculation results of the power distribution calculating section.