The invention discloses a method for identifying communicated pore throats, belonging to the technical field of exploration. The invention aims to solve the technical problems of low operation efficiency and a large amount of calculation in identifying the communicated pore throats. The method comprises a step of constructing a digital rock core model, and establishing a 3D coordinate system corresponding to the digital rock core model, a step of determining the reference plane in the 3D coordinate system, a step of establishing scanning lines perpendicular to the reference plane, wherein each scanning line covers a pore throat, the start point of the scanning line is set as the start pixel point of the pore throat, and the end point of the scanning line is set as the end pixel point of the pore throat, and a step of identifying the communicated pore throats according to the distribution of each scanning line.