The invention relates to a device for measuring the water-bearing feature of soil. The device comprises a measuring device and a sample platform, wherein the measuring device comprises a soil-pressing plate and a thrust meter; a sample pit is formed in the middle part of the sample platform; the measuring device is used for applying pressure to a sample in the sample pit through the soil-pushing plate in order to obtain a sample to be analyzed. A method for measuring the water-bearing feature of the soil comprises the following operation steps: (1) taking soil in a field at a certain depth with a soil auger or a shovel to obtain the soil sample to be treated; (2) placing the soil sample into the sample platform, and applying pressure through the measuring device to obtain the sample to be analyzed; (3) estimating the water-bearing feature of the soil according to the appearance of the sample to be analyzed. The device has the beneficial effects that a method convenient for measuring soil moisture and judging a soil moisture deficiency value is simple and time-saving, and a measurement result is accurate; a user can determine an irrigating measure by rapidly judging the soil moisture content and the soil moisture deficiency value, so that the moisture is utilized efficiently.