Abstract: With the progress of science and technology and the rapid development of water resources industry, the automatic flow measurement method has gradually replaced manual flow measurement, and a variety of automatic flow measurement equipment have emerged. According to measuring method, the measuring equipment can be classified into two types: probing type and non-probing type. In this paper, a general device based on probing-type measurement method is proposed, which is suitable for multi-type automatic measurement equipment. By measuring line length, deviation angle and dip angle, and combining with acquisition and processing technology, the parameters of river cross-section water level, water depth, siltation and stratified flow velocity can be accurately measured. It is suitable for many kinds of cross-section flow measurement equipment, such as cable type, track type and so on. Through the comparison of experimental detection and field monitoring, the vertical measurement accuracy can be greatly improved by using this device.