The target, which is the same as last year, was presented in a report for Monday's opening session of the annual National People's Congress, the rubber-stamp parliament.
The figure, along with an inflation target of three percent, is "fitting given the fact that China's economy is transitioning from a phase of rapid growth to a stage of high-quality development", the report said.
China beat forecasts in 2017 as the world's second grew by 6.9 percent, picking up steam for the first time since 2010 despite a battle against massive debt and polluting factories.
Beijing has largely relied on debt-fuelled investment and exports to drive its tremendous economic growth of the past four decades but it is now seeking to move its economy to more sustainable consumption-based growth.