The invention discloses a crushing and grinding device for the raw materials of the Chinese herbal pieces. The crushing and grinding device comprises a vehicle body, a crushing chamber, a grinding chamber, a crushing knife, a first transmission shaft, a second rotating shaft, static millstones, rotating millstones, a driving wheel, a driven wheel, a first motor, a second motor, a vibrating motor,a vibrating plate and travelling wheels; the crushing chamber is formed in the upper portion of the vehicle body, the first motor connected with the upper end of the crushing chamber is connected withthe crushing knife through the first transmission shaft in the crushing chamber, and the grinding chamber is formed in the lower portion of the crushing chamber; and the static millstones are arranged in the grinding chamber, the second transmission shaft is fixedly connected with the rotating millstones, the vibrating plate is arranged at the lower portion of the grinding chamber, the lower endof the second transmission shaft is connected with the driven wheel, the second motor is arranged on the right side of the driven wheel, the driving wheel is arranged below the second motor, and the travelling wheels are arranged at the lower portion of a bottom plate of the vehicle body. By means of the crushing and grinding device, the integrated operation of crushing and grinding of the Chineseherbal medicine can be achieved, the crushing and grinding device is simple in structure, low in production cost and short in grinding and crushing time.