The invention discloses a method for calculating the subway tunnel waste heat recovery of a single subway station. The method comprises the following steps: 1, acquiring parameter values of a subway tunnel of the single subway station; and 2, calculating a theoretical maximum Qmax of the subway tunnel waste heat recovery by using the parameter values of the subway tunnel of the single subway station acquired in step 1, and calculating a design value Qmin of the subway tunnel waste heat recovery. The method for calculating the subway tunnel waste heat recovery of the single subway station considers the following factors: a heat conductivity coefficient of tunnel surrounding soil, a thermal conductivity coefficient of tunnel surrounding soil, a geometric structure of the tunnel, a convective heat transfer coefficient of the inner wall of the tunnel, a heat transfer coefficient at a shield door of the station, a heat transfer coefficient of station hall ground, an air density in the tunnel, an air specific heat capacity in the tunnel, a lowest air temperature in the winter tunnel before waste heat recovery, a volume exhaust air rate of the station tunnel and a natural stratum temperature of tunnel surrounding soil. By adopting the method, the calculation result of the subway tunnel waste heat recovery is more accurate in view of the influence of the air temperature in the tunnel.