By exploring the range errors from the target specular reflection, and analyzing the relationship between range errors and intensity data, a range error model from the target specular reflection based on original intensity data is established. Experimental results show that the original intensity data can be used to establish a range error correction model, which is independent of target material and surface geometry. According to the original intensity, the distance data can be accurately corrected, which is of great significance to improve the accuracy and quality of terrestrial laser scanning.