In this paper, we analyzed the monthly mean diurnal variation characteristics of the surface radiation budget, energy flux and energy closure condition of the Tazhong shifting sandy land by use of surface radiation and turbulent flux data in 2013. The result indicated that except the LE, the monthly average daily variation of each component of surface radiation and energy balance showed the standard unimodal-type daily cycle pattern. Meanwhile, influenced by the difference of seasons, the daily variation curve had apparent seasonal variation characteristics, with every component manifested a feature of being the highest flux in summer, the second in spring and autumn, and the lowest in winter. From the perspective of energy distribution, the whole day LE in all seasons of the Tazhong shifting sandy land always occupied a relatively low percent, and in daytime, H was its main energy consumption form, second to which was G0. However, the occasional rainfall could excite sudden increase of LE. The monthly average daily variation of surface albedo showed a U'shape distribution, and the surface albedo was small in summer and large in winter. The annual average surface albedo was 0.28, and the monthly average albedo varied from 0.25 to 0.32. Energy balance residuals appeared systematic diurnal cycle alternating with negative and positive value, and it was the lowest in summer, the second in spring and autumn, and the highest in winter. The monthly average daily variation peak value of energy balance residuals varied from 5.1 W·m-2 to 99.9 W·m-2. There was a significant change in the energy balance radio between before sunrise and after sunset and appeared instantaneous energy closure phenomenon. The soil heat storage between the surface and the flux plate was important for surface energy balance. The energy closure ratio was 75.3%, which was the highest in summer, spring took the second place, autumn took the third place and winter was the lowest, and better in the daytime than nighttime.
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