The invention relates to a double-insurance linkage elevator and relates to the field of elevator safety devices. The double-insurance linkage elevator comprises a control box, a dragging wheel, a carriage, a speed limiting device, a safety tong and a rope clamping device. The linkage device comprises a triggering rod, an accelerating gear box, an oil cylinder, an oil pipe, a sliding base and a linear drive device. A triggering hole matched with the triggering rod is formed in the speed limiting wheel. The rope clamping device comprises an ascending clamping device and a descending clamping device. The ascending device comprises an ascending outer plate, an ascending inner plate, an ascending clamp plate, an ascending hydraulic cylinder and an ascending hydraulic rod. The descending device comprises a descending outer plate, a descending inner plate, a descending clamp plate, a descending hydraulic cylinder and a descending hydraulic rod. The ascending hydraulic cylinder and the descending hydraulic cylinder are communicated with a cylinder body of the oil cylinder through the oil pipe. The rope clamping device and the safety tong form double insurance integrally, so that safety is extremely high during the operation of the elevator. The rope clamping device is linked with the speed limiting device, thus the stability and the reliability of the device are greatly improved.