In this paper we address environmental security, environmental crime and national security, which are important issues for the individual, society and the state. In this situation, we would be interested to look at the level of environmental security, environmental crime situation and the connection these two have with national security. Last decades have shown serious environmental damage and environmental security, despite the legal and criminal measures taken by the government and the state. This disturbing phenomenon remains a major problem for solution. Further we analyzed the legal framework for environmental protection, criminal offenses against the environment, the necessity of "insurance" environmental security. From the analysis results that environmental security and environmental crime threaten the national security of our country. The paper also presents some conclusions and recommendations for a more successful environmental security solution and respect for human rights and freedoms for the protection of the environment. Environmental protection through criminal legislation, criminal law and environmental law, required to be realized in accordance with international standards, resolutely fighting corruption and organized environmental crime.