This reasearch aims to explain the factors that affect the volume of Indonesia's Tuna Export to Japan such as exports pricehand exchangekrate of the RupiahlagaintsytheUS dollar. This reaseach will tested if the dependent variables can affecting the independent variables simultaneously or even partially. Type of reaseach is explanatory with quantitative approach. Focus of reasearch is given on volume of Indonesia's Tuna exports in period 2011-2015. Data analiysis method is multiple linier regression statistic supported by application SPSS 21. The reasult of F-test shows that tuna export pricehandkexchange ratedof thebRupiah againtsdthe USedollar arevsimultaneouslyiinfluencing significantlyrto volumeaof Indonesia'sSTuna Export to Japan. Partially, tuna export price and exchange rate of the Rupiah againts the US dollar are simultaneously influencing significantly to volume of Indonesia's Tuna Export to Japan.