Theterrestrial laser scanning systems are a relatively new measurement technology.Along with technological advances, these systems are gaining popularity andhave been increasingly used in many different fields. With terrestrial laserscanning technology, three- dimensional (3D) information and images of objectscan be obtained more practical, easy and with high accuracy compared toconventional methods. Additionally, measurement of an object is performed withoutbeing in physical contact. In this study, our test area 2.10m×2.80m in verticalposition was scanned at 35 m distance in different object colors (white, red,blue and green) with Topcon laser scanner and laser scanner’s position accuracyaccording to this colors were investigated. By switching Y and Z coordinatesobtained from laser... scanning, test area was changed to horizontal position. Inthis case, expected a half rectangular prism’ volume and volumes obtained fromlaser scanning were calculated. Based on our volume differences evaluationresults, it was found that within scanning 35meters distance, position accuracyof this laser scanner is between 5.7 mm and 12.2 mm. In addition, the bestresult is obtained by scanning the test area in white color.