The invention relates to a mechanical feeding type green soybean harvesting and pod picking machine and belongs to the technical field of agricultural machinery. The mechanical feeding type green soybean harvesting and pod picking machine comprises a working table, a rack, and a pod picking roller and a feeding device arranged on the rack, wherein the pod picking roller is arranged at one side of the rack, the feeding device is arranged above the side face of the pod picking roller, a feeding transmission chain of the feeding device is arranged in an inclined manner relative to the axis of the pod picking roller, distance of the axis of the feeding transmission chain relative to the horizontal direction of the axis of the pod picking roller is gradually reduced from a feeding end to an output end, the feeding device clamps roots of green soybean straws by virtue of the feeding transmission chain and sends and places the green soybean straws to a position above the pod picking roller, and green soybean pods on the straws and pod picking pawls on the pod picking roller fit closely by virtue of self gravity of crops, so that picking of the green soybean pods is completed. The mechanical feeding type green soybean harvesting and pod picking machine has the advantages that mechanical feeding replaces manual handheld feeding, amount of labour used is reduced, operation efficiency is improved, and mechanized operation on green soybean harvesting and pod picking is realized. An angle of the feeding transmission chain is adjustable, so that requirement of picking pods on green soybean plants with different heights can be met.