A fully hydraulic intelligent lotus root harvester has been designed to solve the difficult problem in the harsh muddy water environment of the lotus pond. Power distribution is achieved through proportional hydraulic pumps, proportional speed control valves, directional valves, and low speed high torque motors, Forward and reverse control and hydraulic flow adjustment to achieve speed changes such as forward, backward, and turning of the machine. Accurately regulate speed and direction to meet the walking and transition requirements of Lotus Pond; Innovatively designed a chassis structure with the core of “wide rubber track +buoyancy box+ four point linkage lifting device”, which can adapt to different operating water depths; Hydraulic, pneumatic, and electric joint control, Realize remote control of low-pressure and high flow jet, The chain reversing and swinging mechanism integrates chain reversing, lifting, and jetting to achieve swinging jetting, Dynamically adjusting the distance between the jet unit and the mud surface, Vigorously improving the efficiency of low-pressure and high-flow jet.