The utility model relates to a probe used for monitoring the electronic accelerator beam intensity in real time. The probe includes at least two skeletons, openings passing through the skeletons, metal foils covering the openings, and leads electrically connected with the metal foils. The probe has the following advantages: the thickness of the metal aluminium foil is smaller than 5[mu]m, so the metal aluminium foil has less influence on energy loss of high energy electron, and can not stop the high energy electron when the high energy electron passes through the aluminium foil; the probe is easy to use, is strong in operability and stability, and can realize the beam intensity lossless monitoring. The insulated circular skeleton is made of ceramic material, so the high energy electron can generate high heat when passing through the metal foil. The ceramic material is excellent in insulating property, is high in heat conductivity, can radiate heat rapidly, and is not easy to deform.