Considering current study more stressed on measureand analysis and less on control area，We de-Slgned arid reallZed the Weldlng monltOrlng COntr01 System. Th1S System based0n1nduStrlal perSOnal Computer(IPC)，with hardware platform consisting of Touch panel，Programmable logic controller ( PLC)，high-speedetc.，implemented virtual instrument technology to measure，monitor and control the welding process，asas to call the historical data. The system testing result shows that，the user could directly observe andmeasurewellwelding process，change the welding parameter via touch panel;afterwards he canrameter of welding platform movement，welding current and welding speed;afterobtain the measure and monitor data as the proof of welding high quality.timely adjust and control the pa-the welding completed，he could