Wind farm protection has some unique requirements， both wind farm and system faults being considered. Earth faults will result in unfaulted phase voltages rising to the line voltage level and transient over voltages， which can cause equipment insulation degrading and even failures. This paper focuses on the particular problem of feeder ground faults. A novel yet simple solution is presented by use of GOOSE message. It designs and implements information and communication model of the wind-turbine-generator（WTG） IED， and introduces a timing sequence for a feeder fault using the transfer trip solution. Finally， GOOSE message is designed to transfer trip information. Test results of GOOSE message and time sequence interaction indicate that the wind turbine equipment damage can be avoided. It is a good solution to the earth fault.