The invention discloses a site location method and device for a base station, and aims to solve the problem that site location of the base station cannot be performed accurately in the prior art. The method comprises the following steps: acquiring the value of the frequency of a first carrier of a first wireless communication network tested by testing equipment in a testing region, and acquiring the value of first receiving power used during reception of the first carrier by the testing equipment; and determining site information of the base station of the first wireless communication network of which the signal coverage comprises the testing region according to the acquired value of the frequency of the first carrier, the acquired value of the first receiving power, the value of a distance between a preset reference point and a specified base station in a second wireless communication network, the pre-acquired value of the frequency of a reference carrier, the pre-acquired value of a distance attenuation factor, the pre-acquired value of a geographical environment correction factor and the pre-acquired position information of the testing region.