A portable 3D scanner for a whole human body measurement is shown. This body scanner is light and ultra-compact. It is able to scan a whole human body shape in only 2 seconds. Measurements can be made up to 1 million points and more so that the average margin of error is 3 mm or less. The body scanner consists of three pole units. Each pole unit weights 12.1 kg, light enough to be carried by one person. The pole units are assembled by just fitting the unit into the pedestal and fastening it in with a wrench. Through original, advanced calibration technology, determining the placement of the three pole units is finish within 15 minutes.