Abstarct: The permanent magnet transverse flux machine idea in 1986 was presented by Weh and May. These machines are known with high power density and torque. The applications of this type of machine to the high torque applications such as low speed wind turbine generator and the electric motor vehicles. Power density and high torque with high poles and high electrical loading are obtained. Undesirable aspects of the machine are high flux leakage and low power factor due to the number of high poles. Unfortunately, the paths of three-dimensional flux lines, the complex paths of flux leakage and core saturation significantly adds to the difficulty of designing these machines. The advantages of this machine from an ordinary machine has differentiated phases can be independent of each other, simpler forms of machines winding and … mentioned. Design and modeling of these machines seem to be something important. In this paper, beginning on the principles and structures of this type of machines are discussed, Then by selected of claw pole structure, the initial design algorithm is presented. After discussing the initial algorithm, two examples of machines designed for the authorities to ensure the accuracy of the algorithm, are re-design and the results are compared with data given in references. After this stage, the machines were simulated using finite element method and its results are compared with the algorithm. Finally the original machine is designed with the algorithm presented and machine dimensions and parameters are optimized using try and error. At the end of a small sample of transverse flux permanent magnet machines U-shaped core made in the laboratory are discussed.