A pixel circuit including a switching circuit, a storage circuit, a driving circuit, and a pull-down circuit is disclosed. The switching circuit is configured for providing first and second power signals to the storage circuit according to a first gate-driving signal. The storage circuit is configured for providing a corresponding one of first and second data signals to a first node in response to one of the first and second power signals. The driving circuit is configured for writing the voltage signal of the first node into the pixel electrode according to a second gate-driving signal. The circuit structure of the pixel circuit of the present disclosure is relatively simplified. The number of transistors used is less, such that the occupied area is small, thereby facilitating realization of a high-resolution display device.