The invention relates to a turnover device of a solar battery assembly. The turnerover device comprises a clamp turnover mechanism, a conveyor belt lifting mechanism, a control system, a chain wheel drive mechanism, an upper limit position sensor, a lower limit position senor and a protective outer frame, wherein a clump sensor and an assembly judgment sensor are installed on the clamp turnover mechanism; the chain wheel drive mechanism and the conveyor belt lifting mechanism are located below the clamp turnover mechanism; the upper limit position sensor and the lower limit position senor are respectively installed on the upper part and lower part of the conveyor belt lifting mechanism; the protective outer frame is arranged at the periphery of the turnover device; and the control system is arranged on the side part of the outer frame. Compared with the prior art, the turnover device has the advantages of enhanced compatability, high equipment utilization ratio, low cost and the like, and is convenient for use; and relative friction dose not occur in the processes of turnover and transportation, the edges and frames of the assembly have no rubber imprints, and the fragment rate is controlled at 0%, thereby effectively avoiding the pollution and breakage of a battery.