This thesis presents the modelling and design of a control system for a laser communication terminal on UAV platforms. It was written in collaboration with Cucuyo GmbH,whose P-100 terminal is used for the experimental work. However, the chosen methodscan also be applied to similar systems that employ 2-axis gimbals and beam steeringmirrors. This thesis explores different modeling approaches for control design anddiscusses their limitations when applied to real systems. Frequency response analysisis performed on the coarse pointing assembly to design a suitable PI controller andfilter combination to ensure stability in varying conditions. The combined dynamicsof the coarse pointing assembly and the fine pointing assembly are compared againstexpected platform disturbances to verify that the system can reach the set performancegoals. Possible improvements to the P-100 terminal and the control system designprocedure are also discussed.