In response to the problem of eccentricity of force signals that often occurs in high strain dynamic testing,the effect of eccentricity can be partially eliminated by averaging the two force signals in results analysis.However,if the deviation is too large or the signal distortion,it will still significantly affect the test and analysis results.We analyze causes of the eccentricity of hammering in the high strain detection of steel pipe pile,and put forward the corresponding on-site treatment suggestions,such as the targeted adjustment of the installation position of the sensor and the fine-adjusting of the pile frame according causes of the eccentricity of hammering and its influence on test results.