A high ground clearance hydraulic four-wheel drive universal operation chassis was designed. Through the preliminary survey data, the initial target value of the design was established, the structure of the chassis and hydraulic system were designed. Combined with the target value of performance parameter, the type of walking pump and walking motor was determined, and the finite element analysis of steering leg and frame structure design were completed. Based on that, the chassis was passed through the performance analysis to determine the relationship between the wheelbase, and the structural parameters. Finally, the prototype was tested and the pass test was carried out. The tests resulted show that the pressure and flow characteristics of the hydraulic system during the climbing of the operating chassis were within the theoretical design range. Under the condition of full load, the highest steep slope that the universal chassis can pass is 41 degrees, the maximum step height is 490 mm, which can realize the in-situ steering the cement surface speed range is 0～13 km/h, and the speed range in paddy soil is 0～11 km/h. The test results meet the requirements of the universal operation chassis through the design goals, have a good pass performance, suitable for paddy and orchards field.