The increasingly serious electromagnetic radiation environment poses a threat to human health

interferes with the normal operation of precision instruments

and threatens national defense and information security. Lightweight

corrosion-resistant

easy to process

and low-cost carbon-based electromagnetic shielding composites restrict electromagnetic waves through the shielding body. The electromagnetic shielding performance of carbon-based composites is closely related to the design of three-dimensional conductive structures. Carbon-based composites can be designed as homogeneous structures

network structures

oriented structures

and multilayer structures. Based on the microstructure of carbon based electromagnetic shielding composites

the specific shielding mechanism of carbon-based composites was analyzed

and the control of carbon's conductive structure and specific application forms were summarized. The research direction and development trend of carbon based electromagnetic shielding composites in the future were also discussed.