The invention discloses an achieving method of a power plant registration information application system dynamically configured. The method includes the following contents: (1) configuring table realm name information used for automatically generating web pages; (2) setting a power plant registration information application approval process; (3) automatically generating application, approval and management web pages according to domain name information; (4) setting read-write authority limit of an application item; and (5) achieving full-process management of power plant registration information. The achieving method achieves automatic generation of application web pages, approval web pages and management web pages of power plant registration information of a power transaction system, finishes application and approval processes, improves practicability and efficiency of registration information application functions of power generation enterprises, achieves the effect that registered information can be dynamically expanded and updated with business requirement change, and achieves full-process management of power plant registration information.