The crossborder environmental governance is an important part of crossborder security governance. To deal with the “governance deficit” of crossborder environment, we should coordinate the existing resources and involve multiple parties in governance. For China, the crossborder smuggling of “foreign garbage”has become a real threat to its crossborder environmental security. In stemming the smuggling, Chinese enterprises are one of the important parties. While the Government is playing the leading role, the enterprises must use their internal and external resources, insist on the value of environmental security, stick to the green recyclable mode of development, improve their ethical system as responsible enterprises, and give play to the medias guidance so as to find out he ethical path of their participation in governance.