China also built the largest simulation laboratory in Asia for its tests.
Everything was on live stream and broadcasted on CCTV at 8:45 P.M. The rocket called Long March 5 is carrying twenty test satellite called Shijan.
China's Friday launch will be number 34 for the nation - well ahead of Russian Federation with about 20 launches and the USA with 23 launches. Another task of Friday's mission is to verify several key satellite technologies.
But as Friday's successful launch showed, Chinese engineers seem to have fixed the rocket's critical flaws.
China has been developing its space programme with speed.
The Long March 5-Y3 was transported in late October by two ships, Yuanwang 21 and Yuanwang 22, to Wenchang from the production facility in Tianjin.
At the time, it said it was the most powerful launcher it had ever developed. It ranks third among the world's most powerful rockets, following the United States' Falcon Heavy and Delta IV Heavy. (25,000 kilograms) into low Earth orbit.
The Long March-5 rocket, with completely independent intellectual property rights, uses more than 200 key technologies.
With a long-cherished Chinese space dream, China's largest carrier rocket Long March-5 made a successful flight Friday evening, inspiring China to explore deeper into space.
Wang Xiaojun, president of the academy, said the Long March 5 has substantially improved the country's spacefaring capability and laid a solid foundation for the research and development of future rockets that will be even bigger and mightier.
The Long March-5 made its maiden flight on November 3, 2016, from Wenchang. Nevertheless, two of those launches failed, causing some to wonder whether tonight's lift-off would be a repeat of summer 2017. "Further efforts and continuous improvements are needed".
"Compared with the Long March 5-Y2 that was used in the failed second mission, the new one had about 200 technical improvements including in engines' design", Li said.
Wu Yanhua, deputy director of the China National Space Administration, said the success of the flight lays the foundation for a series of future space projects for China including exploring Mars, returning moon samples and constructing its own space station.
Advanced digital technologies were applied in the design, analysis and tests of the Long March-5 rocket, which greatly shortened the development cycle and decreased costs. "The how-many-rockets-have-you-launched metric only has a particular value, but I don't think a few years ago we would have expected to see China launching more rockets than anyone else", says Harvey, according to Forbes.