System and method for measuring soil infiltration capability

The invention discloses a system for measuring soil infiltration performance and includes a constant flow water supplying device, a point source inflow device, a soil storage device and a timing device. The constant flow water supplying device is connected with a point source inflow device, used for supplying water to the point source inflow device with a constant flow and monitors the output stream; the point source inflow device is arranged on the surface of the soil stored by a soil storage device and used for leading the water flow provided by the constant flow water supplying device to enter the soil with a point source inflow mode; the soil storage device is used for storing the soil and monitoring a wetting front of the soil; a timing device is used for recording the time corresponding to the quantity of the water provided by the constant flow water supplying device and the wetting front of the soil and acquiring the soil infiltration rate of the corresponding time according to the stream flow and a wetting radius of the soil of the corresponding time, thus meeting the condition of sufficient water supplying during the test process and ensuring the undisturbed performance of the soil; thereby being able to measure the soil infiltration performance simply and accurately.