Magistrates in Pretoria gave Pistorius his trial date - nearly 13 months after the killing - at a brief hearing on Monday morning.
Double-amputee Pistorius, 26 and known as "Blade Runner" for the prostheses he wears in competition, fired four shots at Reeva Steenkamp through a bathroom door at his Pretoria home in the early hours of the morning on Valentine's Day.
Pistorius has admitted shooting Steenkamp several times through the bathroom door, but claims he was acting in self-defence after becoming convinced that an intruder had broken in to the house.
Police said last week they had used forensic experts, ballistics experts, psychologists and technology experts to investigate the February 14 death of Steenkamp, and that the trial date would be agreed between prosecution and defence.
Monday's hearing was to serve an official indictment, which in the South African legal system is a more detailed charge sheet that is used to move a case from a lower court to a high court.
Pistorius, 26, has admitted to firing four shots at Steenkamp, 29, hitting her in the head, arm and hip.
South African police stumbled in their initial investigation and were forced to replace their lead detective when it emerged he was facing attempted murder charges for shooting at a minibus.
The new investigator, appointed in late February, has handled some of the country's highest-profile cases.
In pre-trial testimony, Pistorius's lawyers told a magistrates' court the shooting had been a tragic mistake and the athlete was acting in self-defence against what he thought was an intruder.
Prosecutors accused him of premeditated murder for killing Steenkamp, a noted model and budding reality TV star.
Pistorius was one of the most celebrated athletes of the 2012 Olympics and Paralympics in London, making the Olympic 400m semi-final and winning Paralympic gold over the same distance.
His arrest and subsequent murder charge a few months later shocked millions around the world.
In South Africa, his triumph over adversity made him a hero for both blacks and whites, transcending the racial divides that persist 19 years after the end of apartheid.
Pistorius has mostly kept out of the public eye since he secured bail. It remains to be seen whether he will continue to keep a low profile in the almost seven months between now and his trial date.