The invention discloses a wheel-holding brake device which comprises an installation support. The wheel-holding brake device is formed by connecting a rotary shaft (8) of a reduction gear (A) with a rotary shaft (7) of a brake mechanism (C) through a driver (B). The reduction gear (A) is formed by connecting an actuating rod (2) of an actuator (H) with a brake block (1B) and a brake driving wheel (1). The driver (B) is obtained through a driving mechanism in the prior art. The rotary shaft (7) of the wheel-holding brake mechanism (C) is provided with a volute spiral spring (D2), one end of the volute spiral spring is fixed to the rotary spring (7), and the other end of the volute spiral spring is connected with a brake lap strap (D). The wheel-holding brake device can play a role in emergency brake, can head off a danger and tide over the crisis when a brake breaks down, and has the advantages of being reliable in performance, significant in effect and the like.