This research aimed at clarifying proper management of planting demanded from a legal viewpoint. First, Article 2 of State Redress Law and Article 717 of Civil Code were set as keywords, and the judicial precedent was searched, using the Internet database law information database LEX/DB Internet. And the examples in connection with the accident that the falling trunk or branch of the tree hits victims directly were taken up out of the searched examples. And then, the other judicial precedent was supplemented by obtaining it from the court. Finally, six examples were summarized in the table, observing the regarded fact in the decision. As a result, the relation between the legal responsibility for manager and the contents of planting management on the judicial precedent for the accident that the falling trunk or branch of the tree hits victims directly could be clarified.