Orange production in Tuyen Quang province contributed as one of the largest and most productive for the whole national yield in Viet Nam orange production. This study focused on input factors that impact the orange production in Tuyen Quang and econometric modeling of this production for further assessment. Results of this study show that three main inputs impact on orange production, including fertilizer cost, pesticides cost, and hired labor cost. Econometric models were built which were suitable for the studied population.Peer reviewe