Cnidium monnieri (L.) Cuss. is a plant with important medicinal, economic value that is distributed in most parts of China. In June 2012，we first discovered that it was rich in natural enemies of pest insects, such as ladybugs and hoverflies, and has the basic feature of a functional plant. Further research found that Cnidium monnieri (L.) Cuss. not only advanced the occurrance of predatory insects and their movement into the wheat field to control insect pests, but that it can also act as corridor between different wheat and as a shelter for natural enemies after the harvest. In other words, Cnidium monnieri (L.) Cuss. can promote the control insect pests year-round in crop fields. Moreover, Cnidium monnieri (L.) Cuss. has the advantages of being easily planted and managed, is highly adaptable, does not spread into the farmland to become a weed, and is ornamental. Therefore, Cnidium monnieri (L.) Cuss. provides is a new way of controlling pests that can increase farmers' income, reduce the use of chemical pesticides and improve the environment, all of which have important economic, ecological, and social benefits.