The invention provides a river sand reservoir identification method and device and electronic equipment, and relates to the technical field of oil-gas exploration, and the method comprises the steps: obtaining the seismic data of a target region, and the logging data and sedimentary microfacies data of each well in a target geological layer in the target region; determining a target logging parameter from each logging parameter corresponding to the logging data; determining reconstructed wave impedance data of each well in the target geological layer and a channel phase identification threshold of the reconstructed wave impedance data; based on the seismic data, the reconstructed wave impedance data and the channel facies recognition threshold, determining a sandstone thickness plane distribution diagram of the target geological layer; based on the seismic data and the sedimentary microfacies data of each well in the target geological strata, determining a river channel plane form distribution diagram of the target geological strata; and fusing the two distribution diagrams to obtain a quantitative description plane graph of the river sand reservoir of the target geological layer in the target area. According to the method, the technical problem that an existing river channel sand reservoir identification method is poor in identification accuracy can be effectively solved.