Satellite remote sensing (SRS) needs to make use of up-to-date technology. The trend in SRS missions has always been towards using hardware devices with smaller size, lower cost, more flexibility, and higher computational power. Therefore, Field Programmable Gate Array (FPGA) technology is highly used by the scientific community and hardware developers to implement different SRS algorithms. Thus, FPGAs offer well-suited architectural features; large number of programmable logic elements, distributed and block RAMs, DSP and register slices and look up tables. This paper describes an approach to the implementation of the Land Surface Temperature Split-Window (LST-SW) algorithm structure based on FPGA technology.