The RAC Rescue helicopter was sent to the scene of a paragliding crash at Carbunup River.
The crash happened near the Bussell Highway about 9am.
Carbunup River is located in the South West, between Vasse and Cowaramup.
The rescue chopper has taken a man to Royal Perth Hospital.
Emergency services attended the scene.
It comes two days after a power glider crashed near Hamelin Bay on the south-west coast of WA.