The invention discloses a well logging interpretation method based on drilling fluid well logging parameter gas logging value. The well logging interpretation method comprises the following steps thata, the gas logging value collected by a drilling fluid well logging is pretreated; b, a changing index of the gas logging value, drilling time, electric conductivity and temperature after pretreatedis calculated; c, moisture index W, oiliness index O and gas-bearing index G are calculated through the changing index; d, a triangle plate with a relative ratio of trilateral is built by the moistureindex W, the oiliness index O and the gas-bearing index G; and e, the built triangle plate is used for indentifying reservoir fluid property. Through the combination of a curve method, a plate method, an automatic identification technology and a fluid body integrated identification technology, the integration level is high, manual intervention is less and the well logging interpretation method based on the drilling fluid well logging parameter gas logging value is convenient to realize.