To provide a bicycle with a child carrying device, which reduces the risk of upsetting a bicycle and also reduces the effort of a rider when getting a child to ride on or off the bicycle.

The bicycle 1 with a child carrying device includes a handle 21 and a child carrying device 2 that are disposed forward a saddle 8. In the bicycle, the handle 21 includes a handle post, in which a rotary mechanism 3 for rotatably mounting the child carrying device 2 by centering on a longitudinal axis is provided.