A method of predicting reservoir sand bodies based on a system comprising wind field, provenance and basin, which are interacted with each other, comprising steps of: acquiring geological data of an area to be predicted, wherein the geological data comprises more than one of core data, paleontological data, well logging data and seismic data; inputting the geological data into a preset model of the system comprising wind field, provenance and basin, which are interacted with each other, to generate data in a process of building up beach-bar sand bodies for the area to be predicted, wherein the model of the system comprising wind field, provenance and basin, which are interacted with each other, comprises a paleo-provenance restoration tool, a paleo-wind force restoration tool, a paleo-wind direction restoration tool, a paleo-geomorphology restoration tool and a paleo-water depth restoration tool; and predicting, based on the data in a process of building up beach-bar sand bodies, distribution locations where the beach-bar sand bodies are distributed in the area to be predicted using a geological method and a geophysical method, characterized in that the step of inputting the geological data into a preset model of the system comprising wind field, provenance and basin, which are interacted with each other, to generate data in a process of building up beach-bar sand bodies for the area to be predicted comprises: processing the geological data using the paleo-wind force restoration tool and the paleo-wind direction restoration tool to generate a distribution pattern in which the beach-bar sand bodies are distributed in the area to be predicted; processing the distribution pattern in which the beach-bar sand bodies are distributed using the paleo-provenance restoration tool to generate distribution characteristics and a sedimentary model of the beach-bar sand bodies; and processing the distribution characteristics and the sedimentary model of the beach-bar sand bodies using the paleo-geomorphology restoration tool and the paleo-water depth restoration tool, to generate distribution locations and range of the beach-bar sand bodies in the area to be predicted. acquiring geological data of an area to be predicted, wherein the geological data comprises more than one of core data, paleontological data, well logging data and seismic data; inputting the geological data into a preset model of the system comprising wind field, provenance and basin, which are interacted with each other, to generate data in a process of building up beach-bar sand bodies for the area to be predicted, wherein the model of the system comprising wind field, provenance and basin, which are interacted with each other, comprises a paleo-provenance restoration tool, a paleo-wind force restoration tool, a paleo-wind direction restoration tool, a paleo-geomorphology restoration tool and a paleo-water depth restoration tool; and predicting, based on the data in a process of building up beach-bar sand bodies, distribution locations where the beach-bar sand bodies are distributed in the area to be predicted using a geological method and a geophysical method, characterized in that the step of inputting the geological data into a preset model of the system comprising wind field, provenance and basin, which are interacted with each other, to generate data in a process of building up beach-bar sand bodies for the area to be predicted comprises: processing the geological data using the paleo-wind force restoration tool and the paleo-wind direction restoration tool to generate a distribution pattern in which the beach-bar sand bodies are distributed in the area to be predicted; processing the distribution pattern in which the beach-bar sand bodies are distributed using the paleo-provenance restoration tool to generate distribution characteristics and a sedimentary model of the beach-bar sand bodies; and processing the distribution characteristics and the sedimentary model of the beach-bar sand bodies using the paleo-geomorphology restoration tool and the paleo-water depth restoration tool, to generate distribution locations and range of the beach-bar sand bodies in the area to be predicted. processing the geological data using the paleo-wind force restoration tool and the paleo-wind direction restoration tool to generate a distribution pattern in which the beach-bar sand bodies are distributed in the area to be predicted; processing the distribution pattern in which the beach-bar sand bodies are distributed using the paleo-provenance restoration tool to generate distribution characteristics and a sedimentary model of the beach-bar sand bodies; and processing the distribution characteristics and the sedimentary model of the beach-bar sand bodies using the paleo-geomorphology restoration tool and the paleo-water depth restoration tool, to generate distribution locations and range of the beach-bar sand bodies in the area to be predicted.