The invention relates to a transient recording data collecting method in an electrical power system, in particular to a transient recording data collecting method based on GOOSE. In an intelligent substation, a tristate data comprehensive measuring and controlling device is utilized to carry out scattering collecting on the transient state recording data arranged at intervals according to the mode of the standard ANSI/IEEE C37.111-1999 (COMTRADE), and a fault recording file is generated; when starting judgment of the distant electricity failure recording is met, the recording data before the starting of the fault and after the starting of the fault are recorded in sections according to the requirements of a fault recording device, and the logic conditions of the distant and the cross-interval fault recording starting criterions are: the distant electricity of the tristate data collecting device is started, state quantity is started and the GOOSE of the adjacent interval devices is started. The transient state recording data collecting method based on the GOOSE ensures that when disturbances occur in the electrical power system, all tristate data collection devices in the intelligent substations can start up at the same time to carry out data collection, and scattered transient data in a data concentration module of a monitoring background are combined to form whole transient recording data of a transformer substation.