This study aims to analyze the triad and conceptual discussions related among democracy, participation and citizenship in front of an ecologically balanced environment, enshrining the idea that their definitions include multifaceted aspects, interrelated, interdependent and indispensable for the legal protection by itself. The development topic begins with the concept of democracy (equal opportunities) in its different aspect to be submitted in the environmental context; subsequently the study referred to in a logical and sequential order the issue with regard to the participation of the environment, characterized as an essential factor of democracy; and also encompass to the right of information, and the right to defense plans, projects and environmental programs as part of the collective. It’s means as an important guide for the practice of citizenship, which it’s one of the constitutional foundations, of principle for dignity of the human person, and the responsibility that every human being possesses. In this range, and finally, the study raises the question about the environmental governance as a measurement of instrumentation, the participation and citizenship in a democratic state with rule of law.