Intelligent ecological floating island device capable of automatically selecting optimal path

The invention provides an intelligent ecological floating island device capable of automatically selecting an optimal path, which comprises a main control unit, a power supply unit, a propelling unit, an anchoring unit, a monitoring unit, a communication unit, a positioning unit, upper computer software and a cloud platform, the main control unit plans a motion route, reads data of the sensor, evaluates the water quality condition, controls the floating island to move and is responsible for integrally coordinating the operation of the device; the propelling unit adjusts the rotating speed of propellers on the two sides to enable the floating island to advance, retreat or steer. A dynamic treatment mode and a low-electric-quantity treatment mode are innovatively designed, and when the electric quantity is sufficient, the treatment efficiency is improved by planning a subsequent treatment path through the current treatment effect; and in the low-electric-quantity treatment mode, self-capability supplement and p