The invention discloses an automatic detection machine, and aims at providing an automatic detection machine high in automation degree and detection efficiency. According to the key point of the technical scheme, the automatic detection machine comprises a machine box. A feeding unit, an outer diameter detection unit, an inner diameter detection unit, a position degree detection unit, a cylindricity detection unit, a small hole burr CCD detection unit, an outline CCD detection unit, an outer diameter appearance CCD detection unit and a discharging unit are sequentially arranged on the machinebox. A transfer mechanism is further arranged on the machine box and comprises a transfer platform capable of moving on a rack and transfer mechanical arms arranged on the transfer platform. Defectivepart discharge pipes are further arranged on the machine box. The automatic detection machine is suitable for the technical field of detection equipment.