This utility model belongs to the field of tobacco production technology and discloses a stem stick detection device. The stem stick detection device includes a support, a collection mechanism, a collection mechanism, and a recycling mechanism. The support is disposed on a supporting surface; the collection mechanism is connected to the support and includes an interconnected collection channel and a collection chamber. The end of the collection channel away from the collection chamber is connected to a
discharge port to allow the stem sticks to enter the collection chamber, which is made of a transparent material; the collection mechanism is connected to the support and located on one side of the collection chamber. The collection mechanism is used to photograph and collect information about the stem sticks inside the collection chamber and to detect the presence of
foreign matter; the recycling mechanism includes a first driving component and a recycling box. The output end of the first driving component is connected to a sealing plate at the bottom of the collection chamber. The recycling box is located below the collection chamber. The first driving component can drive the sealing plate to tilt towards the recycling box so that the stem sticks can fall into the recycling box. This device can automatically complete the loading and unloading of stem sticks and realize automatic sampling and detection of stem sticks.