The invention discloses a uranium ore logging method fusing a natural gamma energy spectrum and a prompt neutron time spectrum for uranium ore exploring and mining, and a scale parameter calculating method. Specifically, according to the uranium ore logging method, the natural gamma energy spectrum formed by natural radioactive elements and the prompt neutron time spectrum caused by pulsed neutronuranium fission in a rock ore layer are measured point by point along a drilled hole, and according to the natural gamma energy spectrum and the prompt neutron time spectrum, the contents of the natural radioactive elements of uranium, thorium, radium, potassium and the like in the rock ore layer are analyzed; and the calculating method of scale parameters such as the conversion coefficient, thesensitivity factor and background response of the natural radioactive elements is also included. Organic combination and data fusion of the two nuclear logging methods are achieved, especially for a single nuclear logging method for uranium ore quantification, radioactive balance correction of uranium, radium and radon is not needed, thus the uranium ore logging method has the characteristics thatcore sampling and chemical analysis are not needed, and has the advantages that the drilling efficiency is improved, the exploring cost is lowered, and the uranium quantification cycle is shortened,and uranium ore quantification on-site analysis can also be achieved through computer programming.