Taiwan leader Ma Ying-jeou was elected as chairman of the Kuomintang (KMT) on July 26 by a landslide win of 93.87 percent of votes.
About 56.95 percent of the voters turned out in the election and Ma won 285,354 valid votes, according to the KMT Central Committee.
Ma told reporters after the election that relations between the mainland and Taiwan have seen "twilight of peace" as the two sides resumed negotiations since last May.
Ma said he would propose at the 18th KMT Congress in September to write the "common wish for peaceful cross-Straits development" reached by KMT and the Communist Party of China (CPC) into KMT's political guidelines.
"This is an important historic promise," he said. "We will definitely honor it."
Ma also said that KMT would continue to support the platform of exchanges with the CPC, such as the Cross-Straits Economic, Trade and Cultural Forum.
Ma won Taiwan's leadership election last March and was inaugurated last May. He had previously served as chairman of KMT from July 2005 to February 2007.
