Allen Carlson develops and justifies a doctrine of objectivity in the aesthetic appreciation of nature by means of epistemology. This doctrine is quite significant for the self-knowledge of aesthetic appreciation of nature and the healthy development of the aesthetics of nature. However, for concepts in environmental ethics and the requirements of contemporary environmentalism, another kind of doctrine of objectivity for aesthetic appreciation of nature is needed, namely, a doctrine of ethical objectivity, which rests the aesthetic appreciation of nature on acknowledging the intrinsic value of nature and respect for nature. Because of this doctrine, appreciators construe the good of nature as the beauty of nature. They genuinely apperceive, understand, and experience the properties and inherent value of nature. The new doctrine of ethical objectivity for aesthetic appreciation of nature is an important development to Carlson’s scientific, cognitive theory. Meanwhile, it’s also helpful to promote the connection between environmental aesthetics and environmental ethics.