Beijing said China's surplus with the U.S. hit an all-time high $28.97 billion last month, while exports to the country hit a record $42.62 billion.
The figures come a week after the trade war between the two began, with the U.S. imposing tariffs on $34bn of Chinese goods, and China retaliating.
This week, Washington threatened to impose 10% tariffs on another $200bn of Chinese imports.
Analysts expect to see the impact of the tariffs in July's figures.
"This trade dispute will definitely have an impact on China-US trade and will have a very negative impact on global trade", a Chinese customs administration spokesman said today.
China's total exports rose 11.3% year-on-year in June, beating a Bloomberg News forecast of 9.5%. Its trade surplus with the USA over the same period was $133.76bn, up from $117.51bn past year.
The imbalance is at the heart of Trump's anger at what he describes as Beijing's unfair trade practices that are hurting American companies and destroying jobs.
While China continues to benefit from strong global demand for its goods for now, the rising trade tensions with the United States has the potential to hurt both sides.
Amy Zhuang has warned that there could be knock-on effects if the USA proceeds with its proposal for a new round of tariffs on $200bn of Chinese goods. Separate data showed Chinese shipments to United States ports rose more than expected in June, suggesting some retailers moved up orders to insulate themselves from an intensifying trade war that threatens to send up costs on a growing number of consumer products.
"Targeting such a large amount of basic consumers will inevitably have an effect on USA inflation".
Separate data suggested some Chinese retailers moved up orders to the U.S.to insulate themselves from the intensifying trade war that threatens to send up costs on a growing number of consumer products.
Imports increased by 14.1%, below the forecast 21.3%.
But, he said, China has another option - Beijing could reduce the impact of U.S. tariffs on exporters by devaluing the yuan to make its goods cheaper for American consumers.
After a strong start to the year, growth in China's exports has moderated recently, and is expected to face more pressure from the initial round of United States tariffs.
"So we would be back to square one", Mr Kuo said, with China exporting more to the U.S. than it buys from the country.
The dispute has jolted global financial markets, raising worries a full-scale trade war could derail the world economy.