Disclosed is a substituted pyrazole compound containing pyrimidine, wherein the structure is as shown in formula (I). See the description for the definition of each substituent. The compound of the present invention has a broad-spectrum fungicidal, insecticidal and acaricidal activity, and has a good controlling effect on cucumber downy mildew, wheat powdery mildew, corn rust, rice blast, cucumber anthracnose, etc. The compound of the present invention also exhibits a good insecticidal activity.