Russia’s criminal policy today does not correspond to modern ideas as to its role and place in ensuring law and order and the safety of the population. Modern criminal legislation is characterized by lack of consistency, imbalance and, as a result, low preventive effectiveness. This state of the criminal law branch has long been obvious to the academia who have rightly criticized this. The paper examines the key defects of criminal legislation and proposes principles for its improvement related to the rationalization and optimization of criminal law in accordance with modern ideas about crime and the fight against it. The punitive policy of the state, which does not achieve the goal of crime prevention, but only provokes its growth, must be replaced by another, more fruitful, rational approach, based on modern ideas about law and the values protected by it, taking into account scientifically substantiated arguments of criminologists and not subject to political, ideological and any other situation.