Composite filter stick segment length detection device and cigarette production line

The utility model provides a composite filter stick segment length detection device and a cigarette production line. The composite filter stick segment length detection device comprises a filter stick placing part which is provided with a placing area for placing a composite filter stick along a preset direction; the light source is configured to provide light capable of penetrating through the composite filter stick; and the measuring device is arranged on the filter stick placing part and is configured to measure the length of each section of filter stick in the composite filter stick in a state that the light source provides illumination. The cigarette production line comprises the composite filter stick segment length detection device. According to the composite filter stick segment length detection device and the cigarette production line provided by the invention, the efficiency and the accuracy of composite filter stick segment length measurement can be improved. 本公开提供了一种复合滤棒分段长度检测装置和烟支生产线。复合滤棒分段长度检测装置