The invention discloses a compound containing aminobenzonitrile shown as a general formula I, wherein a definition of each substituent is seen in the specification. The compound shown as the general formula I has a broad-spectrum bactericidal activity in the field of agriculture, has a good prevention effect for various pathogens such as cucumber downy mildew, wheat powdery mildew, corn rust disease, rice blast of rice, cucumber gray mold and the like, and particularly, has a good control efficiency at lower dosage for the corn rust disease, the rice blast of rice, the cucumber gray mold and the cucumber downy mildew. Moreover, the compound has the advantages of available raw materials and simple synthetic method, and has a broad application prospect.