The invention relates to a traditional Chinese medicine raw material dicing device capable of reducing breakage rate. The traditional Chinese medicine raw material dicing device capable of reducing the breakage rate comprises a machine frame, wherein a conveying belt is installed on the machine frame, two dicing cutters distributed in a right angle shape are arranged on the conveying belt, cutterfaces of the dicing cutters are perpendicular to the belt face of the conveying belt, the dicing cutters are connected with an adjustment mechanism A, the adjustment mechanism A is used for adjustingthe two dicing cutters to respectively advance to cut flaky medicine materials in corresponding cutting directions, and the cutting direction of each dicing cutter is parallel to the cutter face of each dicing cutter, and inclines down and points to the direction of the conveying belt. The traditional Chinese medicine raw material dicing device capable of reducing the breakage rate is stable in structure, reasonable in layout, stable in running, capable of achieving continuous dicing processing for traditional Chinese medicine raw materials, and capable of effectively reducing the dicing breakage rate, and meets current use requirements.