The mobile hospital, with 200 crates of medical supplies and three all-wheel-drive vehicles, can treat up to 250 people a day.
DRK spokesman Svenja Koch said it had its own electricity generator, a dispensary with medications, a kitchen, water tanks and toilets.
The mobile hospital could be put into operation within a day if a suitable location was found, Koch said.
On Wednesday, the German government pledged to provide emergency aid worth 1.5 million euros (2.1 million U.S. dollars), comprising 1 million euros (1.4 million dollars) in financial aid and 500,000 euros (718, 000 dollars) of food, to Haiti.
Many hospitals in the Haitian capital city Port-au-Prince collapsed in the 7.3-magnitude earthquake on Tuesday.
Editor: Lin Zhi