The invention discloses a method of determining oil and gas productivity based on oil and gas control effects of petrophysical facies, the method comprising obtaining reservoir physical property characteristic parameters, including porosity [phi], permeability K and single well production h reflecting the oil and gas productivity of a reservoir, of each exploration point in a research area through analysis; based on the obtained reservoir property characteristic parameters [phi] and K through analysis, and under the correction of actual [phi] and K of a single well in geophysical logging, establishing a reservoir property plane distribution diagram; based on the obtained reservoir property characteristic parameters [phi], K and h through analysis, establishing a relationship graph among [phi], K and h; based on the relationship graph among [phi], K and h, conducting quantitative standardization on petrophysical facies data of the reservoir, establishing a board chart of standardized values FI and h of the petrophysical facies, and conducting verification and feasibility analysis on the board chart of FI with h; and based on the reservoir property plane distribution diagram, and with combination of the board chart of FI with h, determining the oil and gas productivity of each exploration point of the reservoir so as to determine the oil and gas productivity of the entire research area. The method provided by the invention solves the problem of difficulty in predicting the oil and gas productivity of reservoirs, and provides important technical support for reservoir oil and gas research.