Typhoon Soulik made landfall in eastern China on Saturday, after leaving at least one person dead and 21 injured as it cut across northern Taiwan earlier.
The typhoon hit the coast at wind speeds of up to 118 kilometres per hour, and then slowed down to about 20 kilometres per hour.
State television showed pictures of uprooted trees and 10-metre-high waves slamming into the coast.
About 3 lakh people were brought to safety in the eastern Chinese province of Fujian, the official Xinhua news agency reported, with 5,500 soldiers sent to the region.
China has been hit by torrential rains and floods in recent days.
On Friday, the death toll climbed to 56, with 178 missing, from floods and landslides in the south—western province of Sichuan, where some areas were hit by the worst floods for 50 years.
State television on Saturday showed pictures of emergency services restoring destroyed roads. However, the authorities did not release any new details on the number of casualties or the amount of damage.
Earlier in the day, Taiwanese media reported flash flooding, downed trees and damage to buildings as many northern cities closed schools and offices. Airlines cancelled 69 flights that were scheduled to arrive or depart from Taoyuan International Airport.