The size measurement and stacking for microshaft parts produced by the traditional walking machine are mostly completed by manual work, which is inefficient and errorprone. Aimed at the above problems, a mechanical device with stable, reliable, highefficiency automatic measurement and doublestation stacking equipment was proposed. The control system was developed based on Siemens S7300 PLC and TIA Portal software, and hardware configuration, multilingual mixed programming, manmachine interface and so on were all designed under this platform. The automation of the belt conveying, direction correction, transfer buffer, size measurement and doublestation stacking for the microshaft parts was realized. The equipment has been developed and applied, and the quality of measurement and the efficiency of stacking have been greatly improved.