High-precision electronic tide staff

A high-precision electronic tide staff disclosed by the present invention relates to the measurement equipment technology field, and comprises a rod body, an optical assembly and a buoy, wherein the rod body is of a hollow structure, the lower end of the rod body is equipped with a water inlet hole, the water inlet hole is communicated with an internal cavity of the rod body, and the upper end ofthe rod body is equipped with an exhaust hole which is communicated with the internal cavity of the rod body. The buoy is slidably connected into the rod body, and the optical assembly is fixedly installed at the top end in the rod body. The device has the beneficial effects that the structure is simple and reasonable, the water level of river water at any depth can be measured with high precision, the precision is high, and the stability is good; and a large range can be achieved according to the water depth, but the cost increase amplitude is very small, the economy is good, and applicationand popularization are fac