45-year-old Nasheed, the first democratically elected president of the Indian Ocean archipelago, last week refused to appear before a three-judge bench set up to hear charges that he abused his power while in office.
"Questioning the legitimacy of the ad hoc Magistrate Court, I have appealed the case with the high court and I await a decision," he wrote on his Twitter handle.
Nasheed, who won the first democratic elections in the country in 2008, said he would not be given a fair trial. The case could see him jailed or banished to a remote island and barred from future elections.
The case relates to his decision to send the military to arrest of a senior judge in January, an action that led to protests and his resignation in February.