We first demonstrated simultaneous patterning and passivation of P3HT active layer with photosensitive PVA. The passivation layers were obtained by annealing the organic layers after developing PVA and subsequent over-etching the P3HT layer. The fabricated OTFTs were electrically characterized. The OTFTs exhibited the mobility of ${sim}5.9{ imes}10^{-4};cm^2/V{cdot}s$ and on/off current ratio of ${sim}10^4$. After passivation, the results showed the extended lifetime of ${sim}250$ hours with photosensitive PVA layer.