State monitoring of the processing process is a prerequisite and foundation for achieving intelligent monitoring of the processing state. To address the issues of various fault features during the processing process，incomplete information collected by a single sensor，and low reliability of the obtained diagnostic results，a multi-sensor intelligent monitoring system for the processing process was developed based on the LabVIEW platform. This system can collect，store，analyze， and diagnose current，vibration，noise，and acoustic emission signals during the processing process. Experimental results show that the system can accurately collect signals from multiple sensors，as well as store，analyze，and diagnose the signals，improving processing efficiency and product quality. This system can reduce losses and waste in the production process，and can achieve more intelligent and efficient monitoring of the processing state in practical production.