China's purchase of euros will be a long-term strategy and will not swing on short-term problems, the Hong Kong head of China's $300 billion sovereign wealth fund said on Sunday.

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"There is nothing to be worried about. The euro will not fall apart," Laurence Lau, chaiman of the Hong Kong office of China Investment Corp, told reporters on the sidelines of a forum in Beijing.

Lau made general comments on China instead of his organisation's investment strategies.

He added that the Greek debt crisis will eventually be brought under control and be solved.

In Hungary, Chinese Premier Wen Jiabao said on Saturday he was "still confident" that Europe can overcome the debt crisis and that China would remain a long-term investor in Europe's debt market.