The invention discloses a double-breakpoint moving contact assembly and contact device for automatic transfer switching equipment. The double-breakpoint moving contact assembly comprises a shaft sleeve, a moving contact rod, an elastic component, arc sheet groups and contact point parts, wherein the moving contact rod is arranged in the shaft sleeve and two ends extend out of the shaft sleeve; theelastic component is arranged in the shaft sleeve and supported between the moving contact rod and an inner wall surface of the shaft sleeve; the arc sheet groups are arranged at two end parts of themoving contact rod separately; the contact point parts are arranged at two end parts of the moving contact rod separately; the arc sheet groups are located at two opposite sides of the end parts of the moving contact rod; and the contact point parts are located at the other two opposite sides of the end parts of the moving contact rod. The double-breakpoint moving contact assembly comprises the structures, such as the shaft sleeve, the moving contact rod, the elastic component, the arc sheet groups and the contact point parts to form a double-breakpoint single-pole double-throw rotary structure, so that assembly is simple and convenient; the two-stage or three-stage function is achieved by adopting double-breakpoint single-pole double-throw rotary opening or closing; and a generated electric arc is divided into two sections during opening, so that the connecting and breaking indicators are greatly improved and the arc extinguishing effect is strengthened.