Soil filling and covering device capable of keeping depth of planting furrows for asparagus planting and method of soil filling and covering device

The invention discloses a soil filling and covering device capable of keeping the depth of a planting ditch for asparagus planting and a method thereof, and belongs to the technical field of asparagus planting. The soil filling and covering device comprises a planting frame, the planting frame is provided with a planting ditch depth keeping mechanism and a soil filling and covering mechanism which are used in cooperation, and the planting ditch depth keeping mechanism is used for keeping the depth of the planting ditch; the soil filling and covering mechanism is used for filling soil to cover the asparagus planting furrows. According to the asparagus planting device, the problems that during existing asparagus planting, the workload of operators is increased, and the asparagus planting efficiency is low are solved, and the planting furrow depth keeping mechanism and the soil filling covering mechanism which are used in cooperation are arranged on the planting frame; the planting ditch depth keeping mechanism