It brings the amount pledged by Germany to battle the highly-infectious disease to €102 million.
Of the €85 million, €50 million would come from the development budget and €35 million from the foreign office, the government announced.
"What we do now to help in West Africa is, in the best sense of the word, emergency aid for the people there, but is is also the most effective protection for the people of Europe,“ health minister Hermann Gröhe said ahead of an Ebola summit of European ministers in Brussels.
The cash will be used for programmes in West Africa which is the epicentre of the outbreak.
Germany has already sent two transport planes to West Africa to help with the logistics of containing the outbreak and is supporting the construction of field hospitals.
Around 5,000 Bundeswehr soldiers have also volunteered for the Ebola Task Force to West Africa after an appeal by defence minister Ursula von der Leyen.
'Most serious'
On Wednesday, European leaders agreed the Ebola epidemic was "the most serious international public health emergency in recent years."
A 75-minute video conference call between British Prime Minister David Cameron, French President Francois Hollande, German Chancellor Angela Merkel, Italian Prime Minister Matteo Renzi and US President Barack Obama focused on cooperation to fight the outbreak, a spokesman for Cameron said.
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