Disclosed is a root soil removal device on a vegetable harvester for uprooting harvesting. The root soil removal device is integrally located on the lower portion of a vegetable conveying plane of thevegetable harvester for uprooting harvesting and at root system portions of to-be-conveyed leaf vegetables. Fixed supports are fixed to the harvester, a main rotating shaft and an auxiliary rotatingshaft are designed between the fixed supports, and a plurality of upright springs are mounted on each of the main rotating shaft and the auxiliary rotating shaft. The moving upright springs are vertically inserted into gaps of vegetable root systems. The upright springs are identical to the vegetable root systems in movement direction but higher than the vegetable root systems in movement velocity. The upright springs generate hitting forces to vegetable roots, and bent steel wires on the upright springs clamp small root hair of the vegetables, so as to remove soil from main root systems of the vegetables, break off part of the small root hair and remove soil on the small root hair.