The leave vote of the UK referendum has had an effect on global financial markets, and the world economy is facing increasing uncertainty, Li said while addressing the Annual Meeting of the New Champions 2016, also known as the Summer Davos Forum, in the northern port city Tianjin.
For its part, China, the world's second largest economy, is committed to maintaining and developing relations with the EU as well as and the UK.
Speaking to business leaders, policymakers and academics from more than 90 countries, Li said that world economic recovery still falls short of expectations eight years after the financial crisis.
No country can talk about its own development without talking about the world economic environment, he said, stressing concerted efforts to tackle challenges.
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He proposed structural reform, industrial upgrades and efficient global governance as ways to drive the world economic recovery.
Li said China, whose economy slowed down to 6.9 per cent last year, will continue opening up its service and general manufacturing sectors and keep the renminbi generally stable within a reasonable and proper range.
China will maintain a managed floating foreign exchange mechanism that is market-based and adjusted in reference with a basket of currencies, he said.
Chinese economic fundamentals eliminate the possibility of long-term yuan devaluation, he said, apparently referring to nearly four per cent devaluation of Yuan last year sending world markets into tizzy.
He also said despite unavoidable short-term fluctuations in growth during transition, the Chinese economy will not suffer a "hard landing".
"We can deliver the major targets of economic and social development set for 2016," he said.
Chinese economy continued to grow stably in the second quarter of the year, following a 6.7-per cent expansion in the first three months, Li said.