China's massive foreign exchange reserve is among the best performing worldwide, the nation's top foreign exchange regulator said on Thursday.

Although he did not reveal the return rate of China's foreign exchange investment, Yi Gang, head of the State Administration of Foreign Exchange, said the yield was much higher than the inflation rate of the destination countries, Chinanews.com reported.

China's foreign exchange reserve amounted to $3.82 trillion as of 2013, up from $3.31 trillion a year earlier, according to the People's Bank of China, the central bank.

Answering concerns over China's heavy dependence on US Treasury bonds, Yi said the total 1.3 trillion holdings of US Treasury bonds was not a big proportion of the overall portfolio.

"Any investment portfolio could not overlook US treasury bonds... we put safety and liquidity prior to profitability when it comes to the foreign exchange reserve," Yi said.

China's foreign exchange reserve has been strictly audited on a yearly basis, and there will be more transparency in information disclosure in the future, Yi said.

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