The technical scheme belongs to the technical field of detection equipment, and particularly relates to a detection device suitable for cosmetic penholders, comprising a base, a penholder detection module capable of collecting appearance images of the penholders when the penholders rotate for at least one circle, and a conveying mechanism mounted on the base and used for conveying the penholders; the
disc assembly is installed on the
machine base, can be aligned with the multiple stations and is provided with a material fixing
assembly used for fixing the penholders, and the
disc assembly drives the material fixing
assembly to move so as to convey the penholders of the previous
station to the next
station; the feeding and discharging mechanism comprises a feeding
assembly and a discharging assembly. The material fixing assembly comprises a base and an ejector pin rotationally arranged on the base, the ejector pin is sleeved with the open end of the penholder, the
disc assembly is provided with a material rotating mechanism, and when the penholder is located at the photographing end of the penholder detection module, the material rotating mechanism drives the ejector pin to rotate, so that the penholder rotates by at least one circle to be matched with photographing and penholder detection automatic operation, and the detection efficiency is improved.