Calculation and analysis on radiation field around HT-7U Tokamak device under the condition of D-D discharge have been performed with the one dimensional discrete ordinate transport calculation code ANISN. The effects of concrete wall and borated water with different thicknesses on shielding have been analyzed. The spatial distribution of fluxes of neutrons and induced photons and dose rate equivalent can be used as a reference to the radiation protection design and environmental asscessment of HT- 7U device.