Some years ago the systematic model experiments on fishing boat forms were carried out at the experimental tank of Tokyo University. Since that time there have been major changes in model testing technique, and the analysis of model resistance results, which have made earlier data unreliable. Accordingly, on four typical models among the former series, resistance tests with turbulence producing devices were carried out in three draft conditions, and the results obtained are compared with the earlier data. Specially, the effect of hull forms on form factors are investigated.