The present invention describes the crystalline form of amicarbazone of formula (I), the crystal preparation process, the analyses of the crystal through various analytical methods and using the crystal to prepare stable agrochemical formulation. The invention also describes the use of various solvents towards the crystalline form preparation conditions.本發明描述了具有式(I)之胺唑草酮(amicarbazone)之結晶形式、晶體製備方法、藉由各種分析方法分析該晶體和使用該晶體製備穩定的農用化學配製物。本發明還描述了各種溶劑對結晶形式製備條件之用途。