  The research on the brain mechanism of creativity mainly has two aspects, one
is the creative thinking process, and the other is the brain structure and
functional connection characteristics of highly creative people. The billions
of nerve cells in the brain connect and interact with each other. The hundreds
of millions of nerve cells in the brain connect and interact with each other.
The human brain has a high degree of complexity at the biological level,
especially the rational thinking ability of the human brain. Starting from the
connection of molecules, cells, neural networks and the neural function
structure of the brain, it may be fundamentally impossible to study the
rational thinking mode of human beings. Human's rational thinking mode has a
high degree of freedom and transcendence, and such problems cannot be expected
to be studied by elaborating the realization of the nervous system. The
rational thinking of the brain is mainly based on the structured thinking mode,
and the structured thinking mode shows the great scientific power. This paper
studies the theoretical model of innovative thinking based on of category
theory, and analyzes the creation process of two scientific theories which are
landmarks in the history of science, and provides an intuitive, clear
interpretation model and rigorous mathematical argument for the creative
thinking. The structured thinking way have great revelation and help to create
new scientific theories.
