A life tree human project using the placenta of a fetus is provided to receive the life tree based on the placenta of the fetus and to return to the life tree after living with the life tree as a mental pillar. A parent of a fetus receives a life tree based on the placenta and becomes a member. The life tree is raised in an indoor raising place. The parent receives a life tree web service. When a child enters a school, the life tree enters a corresponding place with the child. After the child graduates the school, the life tree is moved to a life park. When the child grows up and died, the body of the child is cremated and restored to the life tree.
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