Currently, manual monitoring is adopted for the monitoring of most pumps in the petrochemical industry, and vibration, temperature and acceleration are mainly monitored. However, this monitoring method has severe limitations, such as limited monitoring time. Real-time monitoring of equipment operation cannot be achieved by manual monitoring, especially in petrochemical enterprises with a large number of pumps. Therefore, it is difficult to detect the early failures of equipment, thus increasing the probability of equipment accidents. This article introduces an online monitoring technology for pumps, which can be used to detect the early failures of pumps and provide effective support for preventing equipment accidents.