The invention provides a low permeability gas reservoir turning repeated fracturing technological method. The specific technological method comprises the following steps of gas well initial fracturing failure or low-efficiency reason analyzing, reservoir stratum evaluating conducted before turning repeated fracturing, turning repeated fracturing well selection and stratum selection decision making, rock mechanical parameter and ground stress testing, turning repeated fracturing ground stress field changing simulating, fracture geometrical parameter and flow conductivity optimizing, turning repeated fracturing technology optimizing, fracturing liquid and turning agent studying, repeated fracturing constructing and evaluating conducted after repeated fracturing. The well selection and stratum selection decision making and residual gas detecting serve as verification systems of each other, fracturing design and fracture detecting serve as verification systems of each other, and a novel fracture turning agent is used in the low permeability gas reservoir turning repeated fracturing technological method. The integrated design of the low permeability gas reservoir turning repeated fracturing is achieved, and the low permeability gas reservoir turning repeated fracturing technological method has the advantages that the design links are macroscopically integrated, local innovation is achieved, linkage is close, mutual verification is achieved, the design is advanced, and the technological advantage is obvious.