A portable boat step device for allowing the user to more easily scale the bow as one enters the boat from the bow. The portable boat step device includes a planar step member having a back end and a front end and being adapted to suspend from a side of a boat; and also includes a flexible line being attached at the back end of the planar step member and being adapted to loop about a mooring cleat of the boat; and further includes a fastening member being attached to the front end of the planar step member and being adapted to removably attach to an eyelet which is securely attached to a bow of the boat.