A drink driver has pleaded guilty to dangerous driving causing the death of a cyclist in the Perth suburb of Cottesloe last month.

Ross Thomas Murray was under the influence when he hit Tim Anderson, 26, on Curtin Avenue.

Mr Anderson was cycling north riding home after training for a charity ride when he was struck from behind by a car at about 8:00 pm.

He hit the windscreen of the car which failed to stop and was then dragged with his bicycle along the road.

Mr Anderson was taken to hospital where he later died as a result of his injuries.

Murray, 28, abandoned his vehicle and fled the scene.

At the time, Inspector Mal Anderson said the driver faced serious charges.

"Major crash inquiry officers have arrested a 28-year-old Waterman's Bay man with aggravated dangerous driving causing death," he said.

"The driver was further charged with failing to stop after an accident, failing to render assistance to the injured cyclist and driving under the influence of alcohol."

In the Perth Magistrates Court today, Murray pleaded guilty to a charge of driving under the influence of alcohol to the extent that he was incapable of having control of the car.

He has been released on bail until he is sentenced in the District Court later this year.

Members of Mr Anderson's family were in court for Murray's appearance but made no comment as they left.

The fatal crash led the Cyclists Action Group to call on the Government to complete the Perth to Fremantle cycleway which currently stops at Grant Street station in Cottesloe.

The group said cyclists are then forced to share the road with heavy traffic.