Prime Minister Najib Razak said President Benigno Aquino invited him to witness the ceremony when "the comprehensive agreement is due to be signed by the end of March".
An official in the office of Aquino's adviser on the peace negotiations confirmed the signing was targeted for the end of next month though no exact date has been set.
"The successful conclusion of the Mindanao peace process... Makes possible the empowerment of all the peoples of Mindanao," Aquino told reporters referring to the southern Philippine state where a decades-long rebellion has killed more than 150,000, mostly civilians.
The Philippine government and the 12,000-member Moro Islamic Liberation Front (MILF) completed negotiations last month for a power-sharing arrangement with the nation's Muslim minority in the south.
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Muslim-majority Malaysia hosted the negotiations.
The deal aims to end an insurgency that began in the 1970s, killed tens of thousands and left large parts of the fertile southern Philippines mired in violence-plagued poverty.
But even Aquino's peace chiefs have warned that the toughest stages, including implementing the deal, are yet to come after 18 years of stop-start negotiations.