Fracture development zone prediction is the key to efficient exploration and development of sand-gravel body in the third member of Shahejie Formation in northern zone of Chexi area in Jiyang depression. The single seismic attribute，such as coherence or curvature attribute，cannot function well in reflecting the fracture development accurately and finely due to its ambiguity. Attemptions were made to accurately predict fracture of sand-gravel body in the third member of Shahejie Formation in northern zone of Chexi area in Jiyang depression by using multi-attribute fusion technology based on seismic imaging theory，and good effect was obtained. Research shows that the attributes of similarity，maximum positive curvature and dip curvature are sensitive to fracture of sand-gravel body in northern zone of Chexi area in Jiyang depression. The multi-attribute volume calculated by RGB-IHS transformation can be used to display clearly the location and distribution shapes of fractures in vertical and lateral planes. The predicted results show that netted fractures resulted from structure fracture interlacing with overpressure fracture develop due to effect of structure activity and abnormal high pressure in the area of Che7-Che57. The development of overpressure fractures is due to effect of abnormal high pressure in all directions in Chegu25 area. The successful application of multi-attribute fusion technology based on seismic imaging theory in fracture prediction of sand-gravel body，which expands the range of application further，has reference significance to fracture prediction in other types of reservoir.