The invention relates to a multi-layer multi-section continuous oil testing system without lifting a tubular column. The system is connected on the downhole testing tubular column in series and comprises an upper sub-system, a plurality of layered testing systems and a lower sub-system which are sequentially connected in series along the axial direction of the tubular column, wherein the upper sub-system comprises a manifold circulating valve, a main testing valve, a full-bore pressure gage support barrel, a safe connector and a top hydraulic packer which are sequentially connected in series along the axial direction of the tubular column. The plurality of layered testing systems are sequentially connected on the tubular column in series along the axial direction of the tubular column, each layered testing system corresponds to one oil layer, and each layered testing system comprises a hydraulic switching valve, a safe connector and a layered hydraulic packer. The lower sub-system comprises a hydraulic sliding sleeve, a pressure transmitting connector and a monitoring pressure gage which are sequentially connected in series along the axial direction of the tubular column. By means of the system, multi-layer and multi-section continuous testing, capacity increasing revamp, liquid discharging and a series of downhole operation processes can be completed without lifting the tubular column, and the system has the advantages of being simple in construction operation, convenient to assemble, short in construction period and the like.