This article compares electrostatic spray guns with electrostatic fluidized bed coating, highlighting their working principles, advantages, and limitations. Both methods utilize electrostatic charges to enhance coating efficiency but differ in application and suitability for different product types. Electrostatic spray guns excel in coating complex shapes with high transfer efficiency, while electrostatic fluidized bed coating is ideal for continuous operations with simple shapes. The choice between these methods depends on specific production needs and environmental considerations.