<正>针对热工参数测量中有关仪表选择问题，提出一些仪表选择原则，并通过分析实例，讨论了如何根据被测量值范围和对测量精度的要求来合理选择仪表的精度和量程，同时还指出在仪表选择上应注意的其它问题。

There are the problems in choice of the instruments to survey the parameters of thermal energy engineering, so the author put forward the principle of selecting the instruments. In the text, the author cited the practical examples and discussed how to select the instrumental precision and range according to the requirements of measure accuracy and range. The other problems in choice of the instruments are also presented.