The utility model relates to the technique field of hydrologic collecting information transmission and conversion, particularly relates to a water level shunt circuit converter, which comprises an input end of a water-level gauge, wherein the input end of the water-level gauge is connected with a plurality of output ends and isolators (a and b) in parallel, the other end of the isolator (a) is connected with an ACS serial output loop and the other end of the isolator (b) is connected with a 485 serial output loop. The utility model is provided with the output ends which can be connected with a telemetry terminal of a hydrographic office or an AGC automatic regulating system of a power station, one path of the water-level gauge is input through the input end of the water-level and is output by the isolation of the isolators and after the signal processing of the ACS serial output loop and the 485 serial output loop, an outlet A can be connected with a GPRS remote-measuring system and an outlet B can be connected with a VHF remote-measuring system. The utility mode can make one path of the water-level gauge directly input a device or expand another water level shunt so as to be provided with more devices, and the functions of remote transmission and conversion can be achieved.