The polarization state microimaging technology is proposed to apply to the imaging research of anisotropic crystal growth. The polarization state of the object is used as the physical quantity for imaging. Three Stokes parameters describing the polarization state are converted to three basic colors RGB, then the polarized-chromatic value of the RGB can be used to describe the corresponding polarization state. On this basis, using the confocal microscopy imaging system, we scan the object point by point to obtain the spatial distribution of Stokes parameters of the anisotropic object. Then we characterize the space distribution of the polarization state of the object by the distribution of polarized-chromatic value. The experimental results show that using the polarization state microimaging technology, we can obtain intuitively all the polarization information of the substance, distinguish two samples with the same material but different internal structures effectively, and observe the changes of the anisotropic crystal growth. Thus, a new visualization method for the growth of crystals is presented.