Abstract: To solve the problems of poor adaptability to complex terrains and insufficient flexibility in ridge adjustment of existing tobacco hilling machines in hilly and mountainous areas, a small-scale tobacco hilling machine was designed. The machine features a compact structure and realizes functional adjustment through the cooperative operation of multiple devices. The handlebar direction can be flexibly adjusted to enhance terrain adaptability. The rotary tillage depth can be precisely controlled via a limit adjustment device, and the hilling height and width can be flexibly adjusted by manipulating the angle of the adjustable hilling baffle device. Design details of key components, including the rotary tillage device, adjustable hilling baffle device, and limit adjustment device, were elaborated. It was found that under the geological conditions of hilly and mountainous areas, the machine demonstrated an excellent hilling effect when the rotary tiller shaft speed was from 200 to 400 r/min and the rotary tillage depth was between 40 and 60 mm. Field tests were conducted using hilling height, hilling width, and soil-breaking rate as evaluation indexes, with the test soil being loam. The results showed that at a hilling machine forward speed of 0.26 m/s, a rotary tillage depth of 54 mm, and a rotary tiller shaft speed of 220 r/min, the hilling height reached 28.60 mm, the hilling width was 142.98 mm, and the soil-breaking rate was 92.15%. All indexes met the design and practical operation requirements.