Abstract: During the normal mining activity at the 6208 working face outside of protective coal pillar in village in No.2 Mining Area of Danhou coal mine in Yuzhou mine，the development scope of ground fissure on one side of the face near the village appeared abnormal expansion，and the village buildings at surface crack expanding area appeared serious damage.Through analyzing in detail the location and the characteristics of the surface crack growth，and combining with ground fissure rules，mining conditions and ground formation condition，the comprehensive crack angle of 6208 working face near the village was determined.The ground fracture development and the causes for the scope expanding of the village damage were studied by the methods of analogy and elimination.It is concluded that the northeastern 6208 working face in Danhou Coal Mine is the fault development zone of the upper reversed fault.Rock fractures in fault zone result in the hardness of rock reduced and the structure loosened.So，the original propagation law by mining influence is changed，leading to the expansion of the surface crack development and the village building damage.

Key words: Surface cracks, Fracture structure, Mining subsidence, Mining damage, Crack angle