The invention discloses an oil and gas resource economy evaluation method. The method comprises the following steps: I, determining basic research parameters; II, objectively weighting the parameters;III, performing parameter standardization processing to eliminate dimension influence; IV, constructing a quantitative mathematical model; V, establishing and forming an economy evaluation key parameter prediction quantity plate, and realizing a visual economy quantity plate; VI, establishing a trend surface prediction graph of a known area; VII, solving economic benefit indexes of the evaluationarea. According to the method, the economic evaluation is carried out on the oil and gas resources by utilizing geological factors, a bridge between the geological resources and economic benefit indexes is built through an economic quantity edition, and a high-exploration-degree area with explored reserves is used as an analogy block. A relationship quantity plate is established according to theknown economic benefits and related geological parameters of the high-exploration-degree area, so as to carry out analogy evaluation on the low-exploration-degree area at the geological resource quantity level.