This paper represents resistance and propulsion test results performed in order to verify the initial design(hull form, control fin, propeller, etc.) and improve performance of underwater vehicle with pre-twist angle of fin. These tests were carried out at a towing tank, KORDI and used large-scaled model with the law of dynamical similarity considering availability of VPMM equipment. Consequently, resistance and propulsion characteristics according to pre-twist angle of fin could be derived.