"China is showing the world and has shown the world that it isn't necessary to harm anyone to be a great power," Chávez told reporters upon his arrival in Beijing. "They're soldiers of peace."
Asked about his absence from talks this week on the sidelines of the United Nations in New York, Chávez said: "It's much more important to be in Beijing than in New York."
His visit comes amid stepped-up confrontation with the United States, including Russia's dispatch Monday of a naval squadron to hold joint maneuvers with Venezuela's navy.
The deployment of Russian military power to the Western Hemisphere is unprecedented since the Cold War and follows a weeklong visit to Venezuela by a pair of Russian strategic bombers.
"The only thing we demand from the next government of the United States is that it respect our nation - that's all, Chávez said. "We're no longer the backyard of the United States."
The leader, who once called President Bush the devil, said he wouldn't respond to recent criticism of him by the presidential candidates in the United States.
"I don't respond to candidates," he said. "If [Senator John] McCain wins or [Senator Barack] Obama wins, well, I'll be ready."
Asked about Venezuela's relations with the United States, Chinese Foreign Ministry spokeswoman Jiang Yu emphasized Beijing's wish not to let ties with Chávez's government complicate relations with Washington.
"Our bilateral relations are not based on ideology, and are not against a third party, and will not affect any other country's relations with Venezuela," Jiang said.
But Chávez appeared eager to cast the visit as part of his larger efforts to wrestle economic and political clout away from the United States.
"We're moving forward with a very clear international strategy. China and Venezuela agree on this: the multipolar world," Chávez said.
China is a key link in Chávez's strategy to develop new markets for its oil exports, and Venezuelan state oil company Petroleos de Venezuela SA, or PDVSA, has ramped up shipments to China to 250,000 barrels a day as of April.
It aims to lift that figure to 500,000 barrels a day by 2010.
Venezuela and China have also signed accords to build three refineries in China.
After China, Chávez will travel to Russia for his second visit in about two months, to be followed by stops in Portugal and France.