Abstract: This paper proposes a method for calculating the compressive bearing capacity of inclined piles based on the limit state design theory. The theoretical formula for calculating the compressive bearing capacity of inclined piles is derived using the deflection theory of elastic foundation beams. Theoretical derivation demonstrates that the theoretical compressive bearing capacity of inclined piles can be determined by plotting the N-M curve of the pile bearing capacity. Based on the static load test data from four actual engineering projects， the effectiveness and parameter values of the theoretical formula were calculated and verified. The comparison results showed that the theoretical formula can accurately predict the compressive bearing capacity of inclined piles. This formula can be used to evaluate the compressive bearing capacity of inclined piles based on static load test data.