Angle-adjustable central armrest

An angle-adjustable central armrest has an armrest framework, a rear part of the armrest framework being rotatably mounted between a left support and a right support by means of a rotary shaft, a left end of the rotary shaft passing through the left support, an angle adjustment mechanism being mounted at the left end of the rotary shaft that has passed through and out, and the angle adjustment mechanism being mounted on an outer side of the left support. By providing the angle adjustment mechanism, an angle of the central armrest may be adjusted according to how a backrest is tilted, thus improving passenger comfort.