Abstract: Ground fissures are divided into structure fissure and non-structure fissure by its origin type. Ground fissure is the biggest surfacical hazard in studied area, up to now, 5 ground fissures have been founded, all of them are active fissure and cause great damages to the construction there. The characteristics of the ground fissures are understand by field investigation,the origin is analysised, the precaution measures are discussed, It has paid attention by local peopie.