Abstract: According to the Earth observation mission requirements,an observation require-ments model based on technical indicators for imaging-satellite sensors was determined.A-dopting the fuzzy comprehensive evaluation(FCE)method,a novel quantitative method of e-valuating imaging-satellite sensors’observation capabilities in regard to mission requirementsis put forward.The method can make reasonable assessment of the applied observation capa-bilities of imaging-satellite sensors.Experimental results show that metric imaging satelliteobservation capabilities using the proposed method are feasible.