The invention discloses a hydride generation and sample introduction method of germanium. The method comprises the following steps: inorganically digesting a to-be-detected sample to obtain a digested solution; adding solid acid and soluble salt containing phosphate anions into the digested solution, and fixing the volume with pure water to obtain a to-be-detected sample solution; respectively extracting the to-be-detected sample solution and an alkaline potassium borohydride solution by virtue of a sampling pump, and mixing; reacting germanium in the to-be-detected sample solution with potassium borohydride under an acidic condition to generate hydrogen germanide and hydrogen after the to-be-detected sample solution and the alkaline potassium borohydride solution are mixed; separating liquid-state components of the generated hydrogen germanide and hydrogen in a gas-liquid separator, and feeding into an atomizer of atomic fluorescence so as to complete the hydride generation and sample introduction processes. Compared with the method only using sulfamic acid, the method has the advantages that 90 percent of reagent consumption is reduced, and the problem that detection is influenced by easily crystallized high-concentration sulfamic acid is solved. The method has excellent popularization and application values.