The invention relates to the field of forestry machinery and discloses artificial forest collecting operation machinery. The artificial forest collecting operation machinery comprises an operating locomotive, a lumbering device, a holding mechanism, a driving guide wheel set, a pruning apparatus, a sawing appliance and a range sensor, wherein the operating locomotive is sequentially provided witha cab, a branch and leaf collection box and a trunk collection box from the front to rear; the lumbering device is arranged at the front end of the operating locomotive; a timber cutting chain saw ispushed to saw off the trunk from the bottom by a hydraulic machine; the driving guide wheel set can drive the trunk to move backwards; the holding mechanism clamps the tree trunk and drives the trunkto rotate to be horizontal; the pruning apparatus and the sawing appliance are arranged on the top of the operating locomotive; a photoelectric sensing emitter and a photoelectric sensing receiver arearranged on the sawing appliance; the range sensor is arranged at the tail of the operating locomotive; the branches and leaves pruned by the pruning apparatus drop into the branch and leaf collection box; and each section of the trunk sawed off by the sawing appliance drops into the trunk collection box. The artificial forest collecting operation machinery disclosed by the invention is capable of simultaneously realizing various operations of trees, such as sawing-off, pruning, sectioning, length measuring, diameter measuring and classified collection, and is safe, high-efficiency and manuallabor-saving.