The government first eased the restriction by allowing a second child for parents, if one of them is an only child.
At the end of 2015, Chinese lawmakers passed a historic legislation allowing all couples to have two children from January 1, 2016 ending its over three and half decades old policy that prevented over 400 million births in the country.
The one-childpolicy, implemented from 1978, restricted China's population to over 1.357 billion as per census in 2013.
The National Health and Family Planning Commission today issued a bulletin saying that 89.2 per cent of the migrant population have access to free family planning.
The commission said the government spent 11.2 billion yuan (USD 1.7 billion) last year on the support of rural households exercising family planning, up by 1.46 billion yuan from 2014 and benefiting over nine million individuals.