A pixel circuit, its driving method, and a display device. The pixel circuit includes a first switch subcircuit, a partition driver chip, and a plurality of light-emitting elements, wherein: the first switch subcircuit is connected to a scanning line, a data line, and a first node connection, used to write the data voltage signal of the data line into the first node under the control of the scan line; The corresponding driving time of each light-emitting element is determined according to the data voltage signal, and the light-emitting element is driven to emit light by using the data voltage signal within the corresponding driving time. This application realizes the active site selection drive through the first switch sub-circuit and the partition driver chip, which effectively reduces the number of glass-based wiring, greatly reduces the difficulty of the side wiring process, and reduces the driving power of the overall display module. Consumption and driving costs, greatly improving the competitive advantage of the product.