It is a main reason that the influence of sediment in river makes the pressure-type stage recorder difficult to be applied in automatic system of hydrologic data collection and transmission. The influence makes the precision of the sensor reducing and maintenance difficult. Although the import sensors have higher precision and good stability, they still can not keep from that kind of influence. Therefore, this paper introduces a new pressure-type stage recorder--stage indirect-gauging recorder with hydraulic pressure sensor. As a stage gauge that can keep from the influence of sediment, it has great development potential.