Microalgae have inherent advantages as a biofuel feedstock because of its high-lipid contents and high productivity per acre compared to other land plant-based feedstocks. However, microalgal-derived biofuels also have been criticized by technical hurdles to overcome to compete with petroleum-based fuel. The bioproductivity for microalgal biodiesel is represented by the growth rate of the organism, lipid contents in the cell, final cell concentration, and \"biomass to lipid\" yield. It is absolutely essential to achieve the appropriate level of bioproductivity to ensure the viability and economic success of biofuel prouction. Commonly known microalgal cultivation methods are not yet providing sufficient bioproductivity required for the economical biodiesel production. We will review the current progresses in microalgal biofuel fields and discuss the path to commercializtion using new thechnology.