A method for preparing a liquid-state dripping pathological quality control product, comprising following steps: a) processing a control; b) adding an ethanol solution to the processed control for standby use, wherein amount of the ethanol solution added depends on amount of a precipitate; and c) performing setting of a positive or negative control by means of dripping, wherein the pathological quality control product is the suspension or homogenate of micro tissue sections, and the step a) comprises following steps: 1) dewaxing the micro tissue sections and performing immunohistochemistry, in situ hybridization and special staining detection according to a part where the micro tissue sections are from, morphology and tumor nature of the micro tissue sections, to determine antigen information and antigen intensity contained in the micro tissue sections, selecting the micro tissue sections with abundant positive cells and few interstitial cells and removing undesired tissues for standby use; 2) sectioning step: performing continuous sectioning according to a tissue section thicknesses required for routine immunohistochemistry, in situ hybridization and special staining, and placing the obtained control sections in a container incapable of being dissolved by organic solvents, for standby use; 3) grinding the sections in the container into fine particles, adding dimethylbenzene to dissolve the sections completely, mixing and centrifuging, discarding dimethylbenzene, then adding absolute ethanol, mixing and centrifuging, and discarding absolute ethanol. a) processing a control; b) adding an ethanol solution to the processed control for standby use, wherein amount of the ethanol solution added depends on amount of a precipitate; and c) performing setting of a positive or negative control by means of dripping, wherein the pathological quality control product is the suspension or homogenate of micro tissue sections, and the step a) comprises following steps: 1) dewaxing the micro tissue sections and performing immunohistochemistry, in situ hybridization and special staining detection according to a part where the micro tissue sections are from, morphology and tumor nature of the micro tissue sections, to determine antigen information and antigen intensity contained in the micro tissue sections, selecting the micro tissue sections with abundant positive cells and few interstitial cells and removing undesired tissues for standby use; 2) sectioning step: performing continuous sectioning according to a tissue section thicknesses required for routine immunohistochemistry, in situ hybridization and special staining, and placing the obtained control sections in a container incapable of being dissolved by organic solvents, for standby use; 3) grinding the sections in the container into fine particles, adding dimethylbenzene to dissolve the sections completely, mixing and centrifuging, discarding dimethylbenzene, then adding absolute ethanol, mixing and centrifuging, and discarding absolute ethanol. 1) dewaxing the micro tissue sections and performing immunohistochemistry, in situ hybridization and special staining detection according to a part where the micro tissue sections are from, morphology and tumor nature of the micro tissue sections, to determine antigen information and antigen intensity contained in the micro tissue sections, selecting the micro tissue sections with abundant positive cells and few interstitial cells and removing undesired tissues for standby use; 2) sectioning step: performing continuous sectioning according to a tissue section thicknesses required for routine immunohistochemistry, in situ hybridization and special staining, and placing the obtained control sections in a container incapable of being dissolved by organic solvents, for standby use; 3) grinding the sections in the container into fine particles, adding dimethylbenzene to dissolve the sections completely, mixing and centrifuging, discarding dimethylbenzene, then adding absolute ethanol, mixing and centrifuging, and discarding absolute ethanol.