The invention provides a distributed control system of a high-power current transformer. The distributed control system is formed by combining a plurality of single controllers, wherein each single controller comprises one master controller, the master controller is responsible for interaction with the master control of a fan and used to match with the master control of the fan to achieve the purpose of tracking the maximal wind energy of the fan so as to realize the normal power generation of the fan; and the master controller is also used for monitoring various states of the converter, is provided with built-in test programs to match the ex-factory test work of the converter, and works in a way of coordinating with other subcontrollers. The number of the subcontroller is determined according to the number of a parallel-connection module of the converter, the subcontrollers are completely the same in configuration and are responsible for monitoring basic units of the converter, transmitting acquired signals to the master controller of the converter and receiving control commands of the master controller so as to control the basic units of the converter to complete the control of the converter. According to the invention, the independent and redundant control of a multi-module parallel connection unit of the high-power converter can be realized, and the advantages of small size, low cost, strong maintainability, high redundancy and the like are achieved.