The application discloses an online monitoring and safety management decision method for a
corrosion dangerous area of a pressure-bearing equipment, and comprises the following steps: obtaining multi-source state monitoring information reflecting the running state of the equipment; uniformly managing the multi-source state monitoring information to form a state information set; analyzing the
corrosion distribution characteristics of the pressure-bearing equipment during the running period based on the state information set; identifying the
corrosion dangerous area according to the corrosion
distribution characteristic analysis result; analyzing the running
management strategy of the pressure-bearing equipment in combination with the
engineering judgment requirement to form a corresponding safety management decision; implementing the safety management decision and continuously tracking, and adjusting the monitoring strategy and the
management strategy according to the change of the running period state information. The application does not depend on a
specific detection principle or a complex evaluation model, but combines the running period state information, the corrosion area characteristics and the
engineering judgment requirement to provide a basis for the safety management, the running strategy adjustment and the subsequent
engineering disposal of the pressure-bearing equipment.