The invention provides a band-shaped sheet tobacco online high-speed non-glue splicing device. The band-shaped sheet tobacco online high-speed non-glue splicing device comprises a bottom plate, an upper unwinding device, a lower unwinding device, an upper cutter assembly, a lower cutter assembly, a non-glue splicing device, an upper accelerating mechanism, a lower accelerating mechanism, an upperguide correction roller, a lower guide correction roller, an output roller, an upper accelerating guide roller and a lower accelerating guide roller, wherein the upper unwinding device, the lower unwinding device, the upper cutter assembly, the lower cutter assembly, the non-glue splicing device, the upper accelerating mechanism, the lower accelerating mechanism, the upper guide correction roller,the lower guide correction roller, the output roller, the upper accelerating guide roller and the lower accelerating guide roller are arranged on the bottom plate. According to the band-shaped sheettobacco online high-speed non-glue splicing device, the overlapped parts of new band-shaped sheet tobacco and old band-shaped sheet tobacco are provided with a plurality of fine pores through rolling,each pore penetrates through the overlapped sections of the new band-shaped sheet tobacco and the old band-shaped sheet tobacco, the positions of the fine pores penetrating through the overlapped parts are turned and deformed, the overlapped sections generate enough resistance in the material operating direction, the requirement of tension borne by the sheet tobacco during normal production is met, overlapped section breaking is avoided, and band-shaped sheet tobacco non-glue splicing is achieved.