Lead pollution is a kind of environmental pollution, which leads to serious problems to ecology and human health. In such a situation, how to repair lead pollution is a key issue that needs to be solved urgently. Compared with other lead pollution remediation methods, bioremediation has unique advantages. Penicillium polonicum, the fungi used in this experiment, is the strain with proven high tolerance and high adsorption rates to lead. On the basis of previous studies, the main purpose of this experiment is to improve the adsorption and immobilization capability of Penicillium polonicum to lead. Double chamber electrolytic cell was used in this experiment to observe the effect of the current on the growth environment and the adsorption of lead by fungi at different voltage ranges from 0.5 V to 1.5 V. The results show that the electric current could either promote or inhibit the adsorption and immobilization of lead ions by Penicillium polonicum. The effect of the current is related to the voltage. The current could enhance the adsorption and immobilization of lead by the strain under the most appropriate voltage range between 1.0 V and 1.25 V.