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The accumulation volume is an important indicator for evaluating the quantity and quality of forests. In order to analyze the impact of open pit mining and land reclamation on stand growth, it is necessary to quickly and accurately determine the stand volume of unaffected areas, damaged areas and treated areas. Due to the complex and varied environment of the mining area, in order to avoid danger, it was proposed to use the ground photogrammetry method to collect field data, and then use the fivetree method as the principle, and combine the derivation shape method to quickly calculate the volume of mixed forests. Comparing the DBH of the 25 trees measured by the ground photogrammetry with the DBH measured by the wooden ruler method, the absolute error of the average DBH was 0.23cm, and the relative error was 1.35%. It was indicated that the noncontact ground photogrammetry method can replace the method of measuring the diameter of breast with each wood ruler. The ground photography and the fivetree method were used to conduct tree surveys on the unaffected areas, damaged areas and treatment areas of Pingshuo mining area. The results showed that compared with the unaffected area, the average breast diameter of the damaged area was decreased by 21.26%, and the accumulated amount was decreased by 41.14%. Compared with the damaged area, the average breast diameter of the treated area was increased by 1.46%, and the accumulated amount was increased by 17.80%. It was showed that openpit mining affected the average DBH and accumulation of forest stands in Pingshuo mining area, especially the impact on the accumulation volume. Land reclamation improved the growth of trees to some extent.