Abstract: In order to effectively monitor the neutron and γ-ray of the fusion product of the Experimental Advanced Superconducting Tokamak（EAST） device, an online monitoring system of nuclear radiation was established. A total of 13 monitoring points are arranged inside and outside the hall of the plant. According to the difference of radiation intensity inside and outside the hall of the plant, BF₃ proportional counter tube and argon ionization chamber, which have the advantages of wide detection range, fast time response, high detection sensitivity and strong working stability, are respectively adopted. After the pulse is screened and shaped by preamplifier, operational amplifier and pulse, it is sent to the single chip microcomputer for processing. The data is transmitted to the acquisition machine through the mixed networking mode of twisted pair and Ethernet. The real-time dose rate and accumulated dose of neutron and gamma ray are collected and stored by LabVIEW acquisition software. The monitoring data show that the neutron and gamma-ray dose rate in the hall increases rapidly in a short time during discharge, and the dose rate increases with the distance from the host. However, the radiation dose rate outside the hall is always at a very low level, almost unaffected by pulse discharge. The monitoring system meets the radiation monitoring requirements of the EAST Tokamak, ensures the radiation safety of personnel and the surrounding environment, and ensures the safe and effective operation of the fusion device.