The invention provides an evaluation method for oil reservoir reserve utilization quality in an ultrahigh water-cut stage. The evaluation method for the oil reservoir reserve utilization quality in the ultrahigh water-cut stage comprises the steps that 1, a subtle study of geological characteristics is conducted; 2, the reservoir development situation is evaluated, and classification of a sand body and reserve calculation are included; 3, reserve utilization situation analysis is conducted; and 4, evaluation for the reserve utilization quality is conducted. The evaluation method for the oil reservoir reserve utilization quality in the ultrahigh water-cut stage is high in pertinence and has very good practicability. The oil reservoir reserve utilization quality in the ultrahigh water-cut stage can be effectively evaluated, and important functions on scientifically putting forward various sand body potential digging strategies and greatly improving the oil field recovery ratio are achieved.