The soldiers, who lost their lives during the Battle of Fromelles in 1916, will be buried with military honours in the first Commonwealth War Graves Commission cemetery to be built for 50 years.
Veterans Minister Kevan Jones, his Australian counterpart, Veteran Affairs Minister Alan Griffin, families of soldiers who fell during the battle and people from the small French village of Fromelles are expected to attend the one-hour service at Fromelles (Pheasant Wood) Military Cemetery.
The bodies were excavated last year from six mass graves where they had been buried by the Germans after the battle.
The remainder of the military burials, save one, will take place three times a week over the next month, weather permitting, with approximately 30 each day.
Mr Jones said: "It was the wish of both governments to give these brave soldiers a fitting place of rest, honouring the commitment shown to our fallen after the First World War. Today we have started that process. Work to try and identify them has already begun and I urge again any families who think they may have a relative killed at the battle of Fromelles to come forward to assist with this."
The Battle of Fromelles began on July 19 1916 and was the first major battle on the Western Front involving Australian troops. The Commonwealth War Graves Commission's (CWGC) records suggest that between July 19 and 21 1916 the Australian dead at Fromelles amounted to 1,780, the British 503.
Each soldier will initially be buried without a permanent headstone awaiting possible identification. In March, an identification board will consider evidence to determine what, if any, level of identity can be attributed to each soldier, using historical, anthropological, archaeological evidence and DNA information.
During the following month, the Commonwealth War Graves Commission will begin erecting permanent headstones for each soldier reflecting the determinations of the board.
Construction of the cemetery is currently only 70% complete, but is expected to be finished by July. On July 19, a ceremony will be held to dedicate the finished cemetery, mark the 94th anniversary of the Battle of Fromelles and complete the final burial of the last of the 250 soldiers who had lain undiscovered since 1916.Reuse content