There is a symbiotic relationship between tourists’ environmental responsibility behavior and tourism’s ecological environment. If tourists consciously maintain the tourism ecological environment, their role in environmental protection will be transformed from a “liability” to an “asset”. Based on the SOR model and relevant research, this paper proposes three stimulus variables for tourists’ environmental responsibility behavior: the image of tourist places, environmental emotion, and local attachment. The initial questionnaire for each variable was created, and the final reasonable questionnaire was determined by reliability testing. A survey of tourists in Shenzhen Bay Park was then conducted and analyzed. The results of the study indicate that tourists in Shenzhen Bay Park exhibit high levels of environmentally responsible behavior. The results of the structural equation test showed that there was a significant influence path relationship (P<0.01) between tourist place image, environmental emotion, and place attachment to environmental responsibility behavior. It has also been found that place attachment has a significant mediating effect on tourist place image, environmental emotion, and tourists’ environmental responsibility behavior. This paper proposes the enhancement strategy of tourists’ environmental responsibility behavior to provide a reference for the strategy planning of related departments, which is conducive to the realization of the sustainable development of seaside ecological scenic spots.