A bicycle pedal with a locking function has a base and a securing member. The base is positioned on a side of the bicycle and has a U-shaped main body and a through hole disposed on the main body. The securing member has a securing rod with an end attached to the bicycle and disposed through the through hole, and a stopping portion disposed at another end of the securing rod. wherein the main body is capable of sliding along the securing rod between a locking position and a non-locking position, and when the main body is at the locking position, the main body moves to one end of the securing rod and pushes against the stopping portion to prevent wheels from rotating, and when the main body is at the non-locking position, the main body moves to another end of the securing rod to release the wheels.