Pixel driving circuit and driving method thereof

The invention provides a pixel driving circuit and a driving method thereof, and belongs to the technical field of display. The pixel driving circuit comprises a first reset sub-circuit, a data write-in sub-circuit, a threshold compensation sub-circuit, a driving transistor and a voltage control sub-circuit, grid electrodes of the voltage control sub-circuit, the first reset sub-circuit and the driving transistor are connected to a first node, wherein the voltage control sub-circuit is configured to provide a gate driving voltage for the driving transistor in response to environment temperature information and a received signal input by a third scanning signal end; the driving transistor is configured to provide driving current for the light-emitting device according to the gate driving voltage input by the voltage control sub-circuit. 本公开提供一种像素驱动电路及其驱动方法，属于显示技术领域。本公开的一种像素驱动电路包括：第一复位子电路、数据写入子电路、阈值补偿子电路、驱动晶体管和电压控制子电路；所述电压控制子电路、第一复位子电路和驱动晶体管的栅极连接于第一节点；其中，电压控制子电路，被配置为响应于环境温度信息和接收到的第三扫描信号端输入的信号，为驱动晶体管提供栅极驱动电压；驱动晶