The invention discloses a compound pendulum type roller mill which is capable of increasing the grinding area and improving grinding efficiency, high in efficiency and low in consumption. The compound pendulum type roller mill comprises a swinging box, wherein a bottom plate of the swinging box is in an arc shape, and the swinging box is equally divided into two parts at bearing central shafts at the two ends so that the swinging box tends to be in a two-force balance state in the moving process. The swinging box is hinged to the two ends of a support through the bearing central shafts. Spring boosters are mounted on the ground and located on the two sides of the swing of the swinging box. The spring boosters and a driving device jointly drive the swinging box to conduct compound pendulum motion under resultant force. The driving device is a crank and rocker mechanism. A box body is divided into two or more working bins by partition plates. Each partition plate is provided with material fineness control and material passing holes. A grinding medium roll is placed in each bin and conducts curvilinear motion to grind and impact ore to be thin and broken.