The bureau mainly operates bus routes in the special wards of Tokyo, as well as those in the city of Ōme in the western Tama Area.

If the sections shared by multiple routes are counted once, the length is 779 km (484 mi).

After 1963, many streetcar lines were closed, and new bus routes started their services as substitutes, making the backbone of the current network.

Toei Bus had the highest ridership in 1972 fiscal year, with the average of 1,298,912 daily passengers.

TMBT uses the kanji names even in English texts, like "有30 starts from Kameari-eki Kitaguchi".

[1] All routes are equipped with accessibility feature, such as non-step buses with kneeling function.

Takanawaguchi (Takanawa Exit) There are also some non-regular routes, including those for Tokyo Big Sight, the National Theatre of Japan, Edogawa Kyōtei Course, the Tokyo Bay Great Fireworks, and the Sumidagawa Fireworks Festival.

The bureau is keen on introducing vehicles with accessibility feature, such as non-step buses.

[1] The bureau also employs relatively many eco-friendly vehicles as Japanese bus operator, including 157 natural gas buses.

For the routes in the special wards of Tokyo, the adult fares are as follows, regardless of the distance.