The performance of antenna radiation pattern measurement conducted manually possesses some drawbacks and limitations: inefficient, inaccurate, slow process, and expensive. This leads to limit the topics and material in practical work in the laboratory since one cycle of measurement which takes a long time to complete. To overcome this problem, a microcontroller is utilized as the main part of the automatic antenna pattern measurement. Along with other supporting components and devices, the microcontroller can be programmed to set and control the direction and step of the rotator, convert electromagnetic wave signal received by the antenna into DC signal, and send it to PC to be processed by another program to be plotted and displayed as a graph on the monitor. The result of the research shows the efficiency, accuracy, and fast measurement process. Consequently, it will expand and enrich the topics of practical subjects in the laboratory.