The invention discloses a flexible hydraulic throttle governing loop experimental system which comprises an oil tank (1), a filter (2), a motor (3), a hydraulic pump (4), an overflow valve (5), throttle valves (6, 8, 13 and 15), a hydraulic cylinder (10), a spring (12) and a plurality of sensors, wherein the components can form the flexible hydraulic throttle governing loop experimental system together. The sensors are connected with the control system (16), and can feed back various data information in the flexible hydraulic throttle governing loop experiment system to a display (2-3) in thecontrol system (16) in real time and store the data information in a controller in a controller cabinet (2-5). By using the flexible hydraulic throttling speed regulation loop experiment system, experiments of different throttling speed regulation loops can be carried out without disassembling pipelines, experiment data are collected and stored at the same time, the efficiency of the experiment system is improved, and the service life of the experiment system is prolonged.