A group of Swiss deputies arrived in Taiwan to meet with the president and deepen political relations with the island.
This was reported by the AR agency.
Switzerland, like all other European governments except the Vatican, has official relations with Beijing, not Taiwan, but maintains extensive commercial and informal ties with the democratic island, which is a center of high technology and trade.
Swiss MPs asked their government to "study how Switzerland's existing relations with Taiwan can be gradually deepened for the benefit of business, politics, science and culture," said one of the MPs, Fabian Molina, during a meeting with President Tsai Ing-wen.
Taiwan and China split in 1949 after a civil war. The island has never been part of the People's Republic of China, but the Communist Party says it must unite with the mainland, if necessary by force. Beijing says the democratically elected government of Tsai Ing-wen has no right to conduct foreign relations.
"It is absolutely necessary that the existing differences and tensions between Taiwan and the PRC be resolved peacefully and through dialogue. Any other action would be unacceptable," said Molina, a member of Switzerland's Social Democratic Party.
The Chinese embassy in Switzerland warned the MPs ahead of their trip to avoid "official contacts".
Lawmakers from Britain and other countries also visited Taiwan to show their support for the elected government.
In August, former US House Speaker Nancy Pelosi became the highest-ranking US official to visit Taiwan in 25 years.