Provided is a process of germanium wet-recovery from chromium-germanium alloy waste. The invention provides a process for recovering germanium aiming at that chromium-germanium alloy contains multiple metallic impurities, and germanium waste material is mixed with a vast amount of organic materials due to the employment of organic solvent in process of mutually wrapping and cutting of the chromium-germanium. A dissolution system of NaOH-H2O2 is employed to destroy organic matters in the waste material, which enables the organic matters to be saponified in NaOH, H2O2 is employed to oxygenize the bare metal germanium in the waste material, which enables the metal germanium to turn into ions which enter solution, then hydrochloric acid is employed to neutralize excessive alkali and distill out dissolved germanium, further hydrochloric acid in hydrochloric acid-MnO2 system is employed to react with chromium and part of metal impurities to enter the solution, the other part of the metal impurities which do not react with the hydrochloric acid is oxidized by chlorine gas to enter the solution, the chlorine gas is generated by the reaction of MnO2 and the hydrochloric acid, germanium wrapped by the impurities is released to react with the chlorine gas to form Ge4+ ions, the Ge4+ ions are combined with chloride ions to form germanium tetrachloride which then escapes after secondary distillation, thereby being separated from the other impurities. The recovery ratio by employing the germanium recovering process reaches above 99%.