The invention discloses a micro grid grid-connection to grid-off smooth switching intelligent control method based on a GOOSE. According to switch position state combination logic expressions of different grid-connection points, a micro grid current operation mode is matched, through the real-time collection of the power information of each grid-connection point, a load, a distributed power supply and an energy storage inverter, according to the matched operation mode at the same time, the switching power value of a current grid-connection point is calculated, the power surplus and deficiency are judged, a load/distributed power supply removing plan is made, and finally the micro grid grid-off smooth control is completed. The method is suitable for various operation modes of a complex micro grid, the grid-connection to grid-off smooth switching control can be realized in various operation modes, and the method has a good application prospect.