The invention relates to a slitting mechanism for a bamboo split roll. The slitting mechanism comprises a rack, a cutting device is arranged on the rack, a rear conveying mechanism with a feeding function is arranged behind the cutting device, a front conveying mechanism with a discharging function is arranged in front of the cutting device, and a discharging outlet is formed in front of the front conveying mechanism. The slitting mechanism has the beneficial effects of being reasonable in structure, capable of quickly, efficiently and automatically cutting the bamboo split roll, adaptive to the characteristic of the bamboo split roll, good in cutting effect and capable of avoiding the phenomenon that bamboo filaments are produced during cutting.