Disclosed is a pyrazole amide compound having fungicidal activity, with a structure shown by the general formula (I): Each of the substituents of the compound being defined as in the description. The compound of the present invention has fungicidal activity, and excellent prevention and controlling effects on diseases, such as cucumber downy mildew, corn rust, wheat powdery mildew, rice blast, etc., and in particular, a better prevention and controlling effect on cucumber downy mildew and corn rust. Also disclosed is a process for preparing the compound, a fungicidal composition containing the compound of general formula (I) and the use thereof in preventing and controlling disease in crops.