城镇自来水公司水流量的计量是提高管理水平和节约用水的关键环节。介绍了供水行业水计量仪表的应用特点，阐述了电磁流量计等常用流量计的类型和新技术特点，提出了流量计量技术的发展趋势，探讨了以微型计算机和网络技术为代表的新型自动化仪表的关键技术，并指出该技术具有的应用前景。关键词:电磁流量计 文丘里管 流量计 超声流量计Abstract: In urban water works, water flow metering is the key factor for efective management and water saving. The application features of waterflow measuring instruments used in water supply enterprises， introduced. The categories and new technical characteristics of commonly used flowmeteas,,e .g. e lectromagneticfl owmeter,ar ed escribeda ndt hed evelopingtr endo fth em eteringte chnologiesis p roposed.S omec riticalte chnologieso fnovel process instrumentation represented场computer and network technology， investigated, and it is pointed thatthe prospects of this technology bright.Keywords:E lectromagneticfl owmeter Venturitu befl owmeter Ultrasonic flowmeter