Purpose: The aim of this study is to present a novel technique in which uniform dose to the whole body as well as the soles and vertex of scalp can be achieved in one electron beam treatment fraction. An experiment was undertaken with a home-made aswirl board that enables the patient to lie in supine or prone position for treatment. Material and Methods: A 6 MeV nominal electron beam was delivered using Elekta Precise Sli throughout this experiment. The patient is treated at a isocenter to skin distance of 350 cm. The largest field size available at SSD 100 cm is 40x40cm^2 and a high dose rate of 3000 MU min^(-1) was used. A 0.6 cm thick acrylic beam spoiler was placed 90cm away from the surface of the patient to scatter the electron beam for a more homogeneous surface dose. Patients are treated with two groups in prone and supine position by leaning on inner rotational board in prone and supine position, each group can further be separated into two subgroup with tilting and rotation positions for treatment. By incorporating all these seeting on the aswirl board with the optimal gantry angle, the patient will final accumulate compensated dosages on whole body surface. Results: One of the gantry beam was directed 15.5° upward and the other 15.5° downward from the horizontal axis to provide a field size as large as 200 cm in height and 140cm in width. An incline angle of 31.50° anteriorly (forward) or posteriorly (backward) of the middle frame and an angle rotated 60° clockwise or counterclockwise of the inner frame is found to be most appropriate. The output dose rate for the AB-TSET was 0.085 cGy/mu at SSD 350 cm. The beam characteristics of the AB-TSET depth dose curves were R50=1.25cm, d(subscript max)=0.6 cm E0=2.913 MeV, R(subscript p)=1.75 cm. Conclusion: The AB-TSET technique presented in this study is able to deliver a uniform dose to the patient’s skin surface as well as to the vertex and the soles all in one time, eliminating the troubles of having to further boost fields for these two regions when using the Stanford Six Field Technique.