The utility model discloses a rotating device for fault simulation experiment model, including operation panel, pivot, chain, digital servo motor, the pivot sets up two, and both ends the operation panel around are installed respectively to the coaxial -type, and two corresponding medial extremities of pivot are used for connecting both sides terminal surface around the fixed experimental model, numeral servo motor also installs on the operation panel and carries out the driven type at the epaxial sprocket of one of them commentaries on classics and be connected with installing through the chain, the experimental model sets up the support frame of symmetry respectively on the left and right big surface of self. The support frame middle part sets up the regulation expansion ring. The fixed pinhole of model is offered to both sides at least one terminal surface of terminal surface around the experimental model, corresponds the fixed pinhole of above -mentioned model, offers the fixed pinhole of corresponding operation panel with the axle center on the operation panel. The utility model discloses increase experimental model application scope to approach actual fault evolution characteristic.