Abstract: A power surfboard includes a surfboard body defining a first side, a supporting piece including at least one first fastener, and a power assembly. An accommodating groove is defined on the first side of the surfboard body. The supporting piece is arranged in the accommodating groove. The power assembly includes a power housing, an operating assembly, and a power source. The operating assembly includes an operating body, at least one second fastener connected to inner side walls of the operating body, and at least one operating piece arranged on the operating body. The power assembly is detachably arranged in the accommodating groove. When each operating piece is in a first state, each second fastener is connected to a corresponding first fastener. When each operating piece is in a second state, each second fastener is separated from the corresponding first fastener.