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The Quality of Crystal Oscillator Shell has important influence to its capability as the benchmark clock unit of circuit. So it is important to detect its quality. Based on the basic principle of machine vision for on-line detecting, machinery structure of the system is designed firstly, then according the requirement of product detecting, the periphery control system is researched, al last, the Detection of the Surface Quality is realized based on the Euler and binary. The experiment indicates this system has the advantages of precision, no contact and stabilization. This system can work with the auto punch and according the surface quality of crystal oscillator shell, the abrasion state of punch mould is estimated indirectly. The product automaton is realized.