Abstract: With the rapid renewing of electronic products， the output of e-waste is increasing quickly. The recycling of e-waste is of major interest as its complicated components and a variety of recyclable critical metals. Bioleaching technology is commonly used in the recycling of critical metal in e-waste for its advantages of simple process， low energy consumption and environmental friendly. Through reviewing the researches in the field of e-waste bioleaching in recent years， the types and mechanism of functional microorganisms that realize the recycling of e-waste are summarized， especially the latest progress of leaching critical metals by acidophilic bacteria， fungus and cyanogenic microorganisms. Meanwhile， the improvement of metal leaching efficiency through pretreatment of e-waste， microbial culture and optimization of bioleaching methods is highlighted. At last， the prospects for the technological breakthrough in future bioleaching research and the recovery of critical metal in leaching solution are proposed.

Key words: bioleaching, electronic waste, functional microorganism, critical metal, process optimization