Telescopic solar sailboat

The invention discloses a telescopic solar sailboat. The telescopic solar sailboat comprises a solar sail, a multi-stage telescopic mast, a rotating base and a boat body, the rotating base is arranged on the boat body, the multi-stage telescopic mast is arranged on the rotating base, and the multi-stage telescopic mast is connected with the solar sail; the solar sail comprises at least two layers of sailboards which are vertically arranged, each sailboard comprises a sailboard body and a sailboard containing cavity defined by the sailboard body, a limiting structure used for limiting lifting of the sailboards is arranged between every two adjacent layers of sailboards, and the multi-stage telescopic mast can drive the sailboard on the upper layer to stretch out of or enter the sailboard containing cavity. The problem that a solar sailboat collects less solar energy is solved, more solar energy can be collected, the solar energy utilization rate is increased, the ship endurance is improved, and the solar sailb