Abstract: A dynamic water surfboard has a power system for providing power to the dynamic water surfboard. The dynamic water surfboard further has a plurality of connecting holes or screw holes. Thereby the dynamic water surfboard can be connected to a great or air inflation surfboard so as to drive the great or air inflation surfboard or the dynamic water surfboard can be used singly. The dynamic water surfboard has a motor and a propeller as a power movement mechanics. A safety mask is locked to a rear side of the propeller by using screws and a handle is installed at a front end of the dynamic water surfboard. Thus the design of the dynamic water surfboard is economic and has wide applications.

Abstract: A power surfboard is disclosed to include a surfboard equipped with an engine and a propeller for propelling on the sea against sea waves, a rudder pivotally provided at the bottom side of the surfboard, and a collapsible control handle coupled to the surfboard for turning by the user to bias the rudder during wave riding.