The invention discloses a stair automatic lifting device for realizing troubleshooting based on big data of manufacturers. The stair automatic lifting device comprises a first lifting mechanism, and asecond lifting mechanism, wherein the first lifting mechanism comprises pedals, telescopic shafts, weight sensors and a lifting motor; the pedals are arranged on the stair steps, and the pedals consists of first pedals and second pedals; the lifting motor drives the expansion and contraction of the first telescopic shafts and the second telescopic shafts under the control of the weight sensors; the second lifting mechanism comprises a control switch, a rotating motor and supporting rods, wherein the support rods are arranged between the second pedals and the stair steps; the control switch isarranged on a stair handrail and is connected with the rotating motor; the rotating motor drives the supporting rods to rotate by 30-60 degrees under the control of the control switch. The stair automatic lifting device is retrofitted on existing manpower stairs to realize the automatic upstairs of users, users can carry large articles such as luggage conveniently to upstairs, the life of residents is convenient; moreover, and the stair automatic lifting device is simple in structure, convenient to maintain, and low in use cost.