In this study, I focus on the city planning system considering disaster risk in Brazil and reveal its system through the Constitution and Federal Law of Brazil. My aim is to obtain useful informations that it's necessary to discuss the way of future city planning system in countries with disaster risk. Results shows the following: 1)the Brazilian legal system aims to realize disaster risk management type land use considering housing measures for low-income people by considering these points that (1) how sustainable citizen life and industrial activities etc. should be advanced in the future, (2) response to disorderly housing construction due to illegal occupation etc. in areas with disaster risk; 2)the advanced municipal government made a draft revision of the master plan for city planning considering disaster risk.