This is a collaborative work of several universities and the research institute INER (http://www.iner.gov.tw) of Taiwan. The goal is to develop the key technologies to converting biomass to gasoline (iGasoline). The framework is depicted in Fig. 1. The iGasoline project consists of torrefaction, plasma gasification, gas cleaning system, syngas refining system, one-step direct dimethy ether (DME) production, and biogasoline production. The first phase of the iGasoline project is the integrated process synthesis and design of plasma gasification of biomass to syngas (BtS), direct synthesis of syngas to DME (StD) and DME to gasoline (DtG). The second phase of the iGasoline project is the development of catalysts used in the DME reactor and the biogasoline reactor. The third phase of the iGasoline project is the construction of pilot plant. We will present the results of the first phase in this symposium. Engineering economic analysis associated with the syngas to gasoline (StG) is also presented.