In industrial processes, it is usually an important and indispensable part to the entire control system of the controlled object level monitoring. The design is based on LabVIEW virtual instrument programming, uses the DAQ equipment to connect with the single tank control platform, uses the LabVIEW virtual instrument programming to control interface, and can be monitoring and regulating system level at realtime, ultimately can keep the target dynamic level stability. The hardware system is made up of electromagnetic valve, pressure transmitter, jet type self suction pump, data acquisition card USB6221, intelligent instrument NHR5330 and other equipment. The software platform is built to base on LabVIEW, through experiment debugging and monitoring, the entire system structure is reasonable, the operation is good, the procedure is optimized, the performance is stable and easy application.