The invention discloses an accurate spotlight antenna planning method for LTE depth coverage. The method comprises the following steps: obtaining to-be-planned high-rise residential building information data; establishing an indoor signal prediction model of spotlight antennas; calculating a width and a height of an opposite building covered by the spotlight antennas; selecting the installation positions of the spotlight antennas in the building; and verifying the installation positions of the spotlight antennas according to the indoor signal prediction model of spotlight antennas and international requirements. According to the accurate spotlight antenna planning method disclosed by the invention, by means of accurate modeling and calculation, quantitative calculation of the coverage range of the spotlight antennas is realized, meanwhile a universal signal prediction model of the spotlight antennas is established, reference installation positions and installation rules of the spotlight antennas are provided according to the established model and the calculation result, accurate plan and design of establishment of a high-rise wireless communication network are realized, the blindness and randomness in the existing network establishment are avoided, accurate planning of the spotlight antennas and depth signal coverage are realized, the rework process is avoided, and the resource utilization rate is improved.