1. A scanning apparatus for scanning a biological sample labeled with fluorochrome, comprising: a case having a chamber therein; a sample table provided in the chamber of the case to place the biological sample thereon; a light source module provided in the chamber of the case to provide excitation light to the biological sample on the sample table, in which the fluorochrome is excited to generate fluorescence by fluorescence resonance energy transfer; an image capture unit provided in the chamber of the case to catch images of the fluorescence of the biological sample; and a driving unit connected to the image capture unit to move the image capture unit.