Profits at Toyota for the first three months of 2011 were down 77% because of the disruption from the earthquake and tsunami on 11 March.
The Japanese carmaker said net profits fell to 25.5 billionn yen ($US315.5 million) between January - March.
But income doubled in the year to the end of March, showing that Toyota had been recovering before the disaster occurred.
Since then, Toyota and other manufacturers have been dealing with parts shortages.
It has curbed production at its factories in Japan and overseas.
President Akio Toyoda said on Wednesday that he expects car manufacturing in Japan and abroad to recover to 70% of its capacity before the earthquake, in June.
A full recovery is not expected until late this year.