Currently

the number of temperature measuring points on tube wall of the(ultra)supercritical600~1 000 MW unit boilers manufactured by the three famous boiler factories is generally small

so the over heating problems of the water tubes can not be monitored effectively and the tube burst happens frequently.To solve this problem

this paper analyzed the design principles and collected the measuring points arrangement scheme for heating plate and the reform plan of them.On this basis

the authors put forward the optimized layout of the measuring points for heating plate.It suggested that temperature measuring point should be installed in the high temperature area and the position which was easy to block.An optimized design scheme was developed based on actual working condition and through adjusting the results.It has great significance to prevent the heating surfaces from overheating and tube rupture and ensure the safe operation of the boiler.