Slovenia's aid, which will come in the form of funds, will reach Haiti via the Red Cross and Red Crescent, the Government Communication Office said in a press release.
Meanwhile, Slovenian branches of worldwide charities Caritas, Red Cross and UNICEF have also opened donation accounts and are raising money to help thousands of people in the Carribean country.
Unicef said that an aircraft with emergency aid, mostly for children, which are a major and most vulnerable part of Haiti's poor, landed in Haiti on Wednesday.
The 7.0-magnitude quake was centred just outside the Haitian capital of Port-au-Prince, which is reported to have sustained heavy damage.
There are still no official reports of the devastation, but some estimates put the death toll in excess of 100,000.