1. A method for adjusting a confocal microscope which includes a microscope unit and a confocal scanner unit of Nipkow disk type, and images a returned fluorescent light of a light beam by a CCD (charge-coupled device) digital camera as a confocal image, the method comprising the step of: matching a phase of rotation of the Nipkow disk with a phase of an exposure time of the CCD digital camera, wherein a time (s) required to create one screen of the confocal image is obtained by the following equation: 
 =s 60/(a number of the rotation of the Nipkow disk*12), wherein a unit of the time (s) is a second.