Nanjing in Jiangsu province promises to install doors that separate the driver from the passengers on some 8,000 buses by 2019, People's Daily reported.
Wuhan in Hubei province will replace 6,100 older buses with new models equipped with protective doors by 2025, Wuhan Evening News reported.
Some places have already started to take stricter legal measures against passengers who misbehave.
A local court in Shenyang, Liaoning province, sentenced three individuals in three separate cases to three years in prison with reprieve.
All three had physically clashed with bus drivers, causing traffic accidents or injuries to passengers.
Media reports have found at least 24 incidents of passengers grabbing the steering wheel of a bus in 2018.