The generating mechanism and the behavior of chatter vibration have been investigated in detail for a long time. On the other hand, very few reports have been appeared about the positive detection of chatter vibration. However, establishment of an objective method which can detect the commencing of chatter vibration in a process and its practical suppression method are the most important and urgent problems for automatic manufacturing systems. In this paper, a simple and practical approach is proposed to detect the occurrence of chatter vibration in a process and its applicability is investigated. According to the approach in this study, the occurrence of chatter vibration is detected from a trend of the factor which is produced from the signal of workpiece deflection. The authors have constructed a simple and practical hardware system using an analogue circuit developed for suppressing chatter. They have been also investigated its applicability to the manufacturing field. The authors obtained satisfactory results in this study.