The invention relates to the technical field of high-voltage insulator algae treatment and discloses an electric field treatment test method for silicone rubber surface algae. The electric field treatment test method for the silicone rubber surface algae comprises the following steps of making an annular sheet by using silicone rubber; providing an algae solution or an algae mixture with differentconcentrations of algae cells, and coating the surface of the annular sheet with the algal solution or the algae mixture; connecting a high-voltage electrode of a high-voltage power supply to the inner circular wall of the annular sheet, and connecting a grounding electrode to the outer circular wall of the annular sheet; starting the high-voltage power supply to apply voltage to the annular sheet; and after pressurization is finished, dividing the surface of the annular sheet into multiple annular zones to obtain the algae change conditions in corresponding annular electric field intensity ranges of different annular zones. By adopting the electric field treatment test method for the silicone rubber surface algae, the algae change conditions in different annular electric field intensityranges are measured, and the growth treatment effect on algae cells is studied. The invention further provides a device based on the electric field treatment test method for the silicon rubber surfacealgae.