Studieds the extraction of neodymium by using di-(2-ethylhexyl) phosphoric acid (D2EHPA) which is an extractant dissolved in kerosene as membrane solution. The membrane solution was carried out using a microporous hydrophobic hollow fiber membrane extractor. The effect of this process were also studied including the pH of feed solutions within the acidic-pH range, the concentration of neodymium ion in feed solutions in the range of 20 of 120 ppm, the concentration of D2EHPA in membrane solutions in the range of 3 to 20 percent by volume and the concentration of nitric acid in strip solution in the range of 0.01 to 0.5 mol/l. The results showed that the percentage of extraction is dependent on the pH of the feed solution, with the maximum value at pH 3 and the molar flux of neodymium ion increases in accordance with the concentration of neodymium ion in feed solution and be constant when the concentration of neodymium ion in feed solution is higher than 100 ppm. In addition, when the concentration of D2EHPA is in the range of 3 to 9 percent by volume, the molar flux increases in accordance with an increase in the concentration of D2EHPA. However, the molar flux is constant when the concentration of D2EHPA is higher than 9 percent by volume. Moreover, the extraction is not affected by nitric acid with the concentration higher than 0.1 mol/l.