The present invention provides an AMOLED pixel circuit. The third thin film transistor (T3) are located between the first, the second thin film transistors (T1, T2), and the control line (Control) is employed to input the control signal for controlling on and off of the third thin film transistor (T3), and thus controlling the AMOLED pixel circuit to measure the drive current with the current measurement circuit (1) and correcting the signal voltage with the signal voltage drive circuit (2), or displaying normally. The drive current entering the organic light emitting diode (D) in respective pixels can be corrected to solve the issues of unstable brightness and uneven display caused by the properties of the organic light emitting diode (D), which is changing along with the time and temperature, and to improve the display effect.