Abstract: In order to evaluate the self-healing effect of bentonite fracture,researches were carried on to find the changing rules of permeability coefficient for the compacted bentonite samples,which have different fracture configurations and numbers,by permeated-saturated experiments.The statistical methods were used to analyze the differences of different permeability coefficient samples.The results show that permeability coefficient of compacted bentonite with fractures (dry density 1.2 g/cm³) gradually decreased with time during the saturated process,and the permeability coefficients have no significant differences between the samples with or without fractures.It also shows that configurations and numbers of fracture have no significant influence on the permeability of compacted bentonite.The compacted bentonite has good self-healing performance.