对热色液晶在表面温度测量,微波、激光、超声等场分布的检测,以及国内外的应用实例作了简要叙述。介绍了热色液晶在微波场强分布、微带天线方向图、物理教学中电磁场图像的直观显示、金属表面热传递系数的测量。以及在医学中的广泛应用。指出了热色液晶在无损探伤,热控液晶字母数字显示,各种传感器、广告、玩具、装饰等方面的发展前景。最后给出了热色液晶的检测参数。 The thermochromic liquid crystal in the surface temperature measurement, microwave, laser, ultrasonic field distribution testing, as well as domestic and international application examples were briefly described. The distribution of thermochromatic liquid crystal in microwave field, the microstrip antenna pattern, the visual display of electromagnetic field in physics teaching and the measurement of the heat transfer coefficient of metal surface are introduced. As well as widely used in medicine. The development prospects of thermochromic liquid crystal in nondestructive testing, thermal control alphanumeric display, various sensors, advertising, toys, decoration and so on are pointed out. Finally, the detection parameters of the thermochromic liquid crystal are given.