Russian President Vladimir Putin agreed to provide humanitarian aid to Serb areas in Kosovo last month after a request from Serbia's government citing a deteriorating humanitarian situation there.
"The second phase will start in a week. This will consist of medicines and equipment," Sergei Shoigu told journalists.
The first planeloads of aid to the Serb minority in the province, that declared independence from Serbia in February, were delivered to Belgrade April 2-10.
A total of 150 metric tons of food, including canned meat and fish, baby food, rice, and sugar, along with substantial amounts of medical equipment, medicines, disinfectants and other healthcare products was delivered to the Serbian capital for shipment to Kosovo.
The Red Cross will distribute the aid to a total of 6,500 Serbian families from May 5.
Kosovo, with a 90% ethnic-Albanian majority, has been formally recognized as a sovereign state by 37 countries including the United States and most European Union members since it proclaimed its independence from Serbia on February 17.
Russia and China continue to back Belgrade's position that Kosovo will always remain a part of Serbia.