This paper describes a non-TNT rock explosive based on nitrates of area and ammonium.The complex urea nitrate is used as a sensitizer instead of TNT to make a low toxic rock explosive with low mechanical sensitivity, high performance and good storage property. The factors influencing on the properties of complex urea nitrate and the non-TNT explosive,the way to improve the complex and the thermal decomposition behavior of the non-TNT rock explosive are discussed.