The invention belongs to the technical field of pesticides, and particularly relates to a pyraclostrobin preparation and a preparation method thereof; particularly, the pyraclostrobin crystal form I, the pyraclostrobin crystal form III or other mixtures which is/are not stable and not easily used for processing preparations is/are directly used for processing and application of corresponding preparations without being transformed, so that the problems of pyraclostrobin technical material breakage and stability in the later storage period of the corresponding preparations can be solved; therefore, the pyraclostrobin preparation has great market application prospect and good social and environmental benefits.