The present invention relates to a number of not departing from the infant in the driver's field of view the width of the stroller occupies the board while still moving course wide enough easy operation and movement side portable baby carriage, side portable baby carriage according to the present invention, the long rectangular shape installation frame; A plurality of pairs of rotating wheels that are installed side by side in the longitudinal direction on the lower installation frame; A plurality of infant chairs are installed in the longitudinal direction on the upper portion of the mounting frame; It is provided on the upper surface of the installation frame, a chair coupling unit for detachably coupling the infant seat on the installation frame; It is installed on the front side of the installation frame, the adjustment knob unit for adjusting the moving direction of the mounting frame; includes.