This paper deals with the structural proposal of the micro autonomous robotic system, and shows the design of the prototype. We aim at developing the micro robot, which autonomously acts based on its detection, in order to propose a solution to constitute the micro autonomous robotic system. However, as miniaturizing the size, the number of the sensors gets restricted and the information from them becomes lack. Lack of the information makes it difficult to realize an intelligence of quality. Because of that, the micro robotic system needs to develop the simple algorithm. In this paper, we propose the simply logical algorithms to control the actuator, and show the performance of the micro robot controlled by them, and design the Micro Line Trace Robot, which dimension is about 1 cm cube and which moves along the black line on the white-colored ground, and the programmable micro autonomous robot, which dimension is about 2 cm cube and which performs according to the program optionally.