During his visit to Pakistan, Li will meet with President of Pakistan Asif Ali Zardari and meet with Pakistani leaders from the country's parliament, political parties and military, including Muhammad Nawaz Sharif, president of Pakistan Muslim League-Nawaz (PML-N).
On Tuesday, the Election Commission of Pakistan announced election results for 254 National Assembly seats, with PML-N taking a majority 123 seats.
"China is glad to see that Pakistan's general election has been held smoothly," Song said, adding that China respects the choice of the people of Pakistan.
As an all-weather partner, China will continue to firmly support Pakistan's efforts to maintain stability and seek development, he said.
"We are convinced that through joint efforts, the China-Pakistan strategic cooperative partnership will be lifted to a new level," he added.
During Li's visit to Pakistan, the two sides are scheduled to sign three intergovernmental deals on economic and trade cooperation, and China's trade and investment promotion group will also visit the country.
As developed countries, Switzerland and Germany are important economic and trade partners for China in Europe. China and the two European nations are economically complementary, said Song.
China's huge market has provided great business opportunities for Switzerland and Germany, while Europe's advanced technologies will help China in achieving its economic transformation.
During his visit to Switzerland, Premier Li will meet with President of the Confederation Ueli Maurer, Vice-President of the Confederation Didier Burkhalter and Head of Federal Department of Economic Affairs Johann Schneider-Ammann.
"Li's visit to Switzerland will push forward bilateral ties and make bilateral cooperation a model of friendly exchanges between countries with different social systems," said Song.