The present application discloses an organic light emitting pixel driving circuit, an organic light emitting display panel and a driving method thereof. One embodiment of the organic light emitting pixel driving circuit comprises: a storage unit, a coupling unit, a data writing unit, a light emitting control unit, a reset unit, a data line, a first scanning line, a second scanning line, a light emitting control line, a reference voltage line, an initialization voltage line, a light emitting element and a driving transistor. By writing a compensation voltage to a second electrode of the driving transistor and then to a gate of the driving transistor through the coupling unit, the embodiment avoids a noise from a parasitic capacitance generated by a signal change on the data line to the gate of the driving transistor, therefore a stable display is achieves.