Abstract: Combining the data of geology and exploitation, the paper systematically evaluates the development effects of low-permeability conglomerate reservoirs in Xinjiang oilfield. Through the analysis of the development effect scores given by experts for developed blocks and the basic evaluation parameters, the key parameters which can characterize the development effects are determined as reserves abundance, air permeability, daily oil production per kilometer in depth and oil viscosity. Multivariate linear regression has been performed for these parameters and development effect scores given by experts, and a comprehensive model has been established for development potential evaluation. Based on which, combining with the strategic factor analysis, the paper builds evaluation charts for reservoir geology factors and economic environment factors. Taking the internal rate of return greater than 8% and the comprehensive score higher than 72 as criteria, respectively, 6 blocks including JL-2, B-34, M-2, JW-42, W-109 and 531 are selected as the mid-term development targets. Taking the internal rate of return greater than 12% and the comprehensive score higher than 78 as criteria, respectively, 3 blocks such as M-18, X-54 and X-50 are selected as the short-term development targets, which can provide basis for development decision making