Herbicide composition and preparation thereof

The invention pertains to the field of pesticide, in particular to a herbicide composition containing rimsulfuron and atrazine and a preparation thereof. The herbicide composition is characterized by containing two ingredients of A and B, wherein A is the rimsulfuron and B is the atrazine; the portions of A and B by weight are respectively: 0.1 to 90 portions of rimsulfuron and 5 to 90 portions of atrazine. The herbicide composition has good effect for preventing and killing off annual poaceae, broadleaf weeds and part of perennial weeds in corn fields, as well as obvious synergy, and simultaneously enlarges the herbicide controlling spectrum.