The potential ecological environmental impact of deep-sea mining has attracted widespread attention.This paper systematically summarized the basic occurrence of main deep-sea resources such as iron-manganese polymetallic nodules,iron-manganese-cobalt-rich crusts and polymetallic,analyzed the substance migration-plume generated-light-oxygen-toxic substances released by the electromagnetic noise in major potential environmental impact factors of mining technology,based on deep sea mining ecological environment impact assessment study of technical requirements.In order to provide reference for the development of environmental monitoring technology for deep-sea mining in China,the framework of environmental monitoring technology system for deep-sea mining was put forward from the aspects of carrying out the experimental project of environmental monitoring for deep-sea mining,establishing the system of major deep-sea equipment and developing in-situ monitoring sensors.