A pedal device for vehicles (100) comprises a pedal (32) and a telescoping mechanism, the telescoping mechanism including a mounting support (10), a pedal support (25), a first lever arm (21), a second lever arm (22), and a third lever arm (23), a fourth lever arm (24), a spring support (42) and a spring (41). The first end (21a) of the first lever arm (21) and the mounting support (10), the second end (21b) of the first lever arm (21) and the pedal support (25), the first end (22a) of the second lever arm (22) and the mounting support (10), the first end (23a) of the third lever arm (23) and the second end (22b) of the second lever arm (22), the second end (23b) of the third lever arm (23) and the first lever arm (21), the first end (24a) of the fourth lever arm (24) and the second end (22b) of the second lever arm (22), and the second end (24b) of the fourth lever arm (24) and the pedal support (25) are pivotally connected to one another respectively. The spring support (42) is rotatably provided at the fir