A foldable pedal , comprising: a connection member comprising a first connection end and a second connection end arranged in opposite to the first connection end along a first axis (L1); a shaft comprising a first end and a second end arranged in opposite to the first end , the first end being pivotally connected with the second connection end along a second axis (L2) which is perpendicular to the first axis (L1), so that the shaft pivots with respect to the connection member ; a pedal body comprising a shaft bore for receiving the second end of the shaft , the shaft being rotatable with respect to the shaft bore ; an engagement device disposed on the connection member and switchable between an engagement position and a release position; when the engagement device is at the engagement position, the engagement device is engaged with the first end of the shaft , such that the shaft is arranged in coaxial alignment with the first axis (L1); when the engagement device is at the release position, the pedal body is foldable with respect to a crank , wherein the first axis (L1) crosses the second axis (L2) at a pivot point (X); the engagement device and the pivot point (X) are arranged on an outer side of the pedal body , and the engagement device is between the first connection end and the pivot point (X); at the release position, the pedal body is folded about the pivot point (X) with respect to the crank , characterized in that : a pivot axle is included, the first end of the shaft comprises a slide groove disposed along an axial direction, and the pivot axle passes through between the slide groove and the second connection end along the second axis (L2); at the engagement position, the pivot axle is at a first position of the slide groove , and the slide groove is parallel to the first axis (L1); at the release position, the pivot axle is at a second position of the slide groove , and the slide groove is perpendicular to the first axis (L1) and the second axis (L2); the second connection end comprises a combination bore on the first axis (L1) toward the first connection end ; at the engagement position, the first end of the shaft is inserted in the combination bore ; at the release position, the first end of the shaft is allowed to leave the combination bore . a connection member comprising a first connection end and a second connection end arranged in opposite to the first connection end along a first axis (L1); a shaft comprising a first end and a second end arranged in opposite to the first end , the first end being pivotally connected with the second connection end along a second axis (L2) which is perpendicular to the first axis (L1), so that the shaft pivots with respect to the connection member ; a pedal body comprising a shaft bore for receiving the second end of the shaft , the shaft being rotatable with respect to the shaft bore ; an engagement device disposed on the connection member and switchable between an engagement position and a release position; when the engagement device is at the engagement position, the engagement device is engaged with the first end of the shaft , such that the shaft is arranged in coaxial alignment with the first axis (L1); when the engagement device is at the release position, the pedal body is foldable with respect to a crank , wherein the first axis (L1) crosses the second axis (L2) at a pivot point (X); the engagement device and the pivot point (X) are arranged on an outer side of the pedal body , and the engagement device is between the first connection end and the pivot point (X); at the release position, the pedal body is folded about the pivot point (X) with respect to the crank , <EOS>