The second area of SCI refers to the journals whose impact factors are between the top 25%(Q 1) and the top 50%(Q2). These journals have high impact factors and academic level, and have been recognized by the majority of researchers. The following are some periodicals of SCI II of China Academy of Sciences:

-Cell Report Physical Science: This is a comprehensive journal, covering many sub-categories such as chemical synthesis, energy, material synthesis and physical synthesis.

-《IEEE Sensor Journal: mainly related to applied physics, instruments and equipment, electronic technology and other fields.

-Science: This is a comprehensive periodical.

-Journal of Advanced Studies: This is also a comprehensive magazine.

-Journal of Cultural Heritage: covering many sub-categories such as material synthesis, differentiation, geographical synthesis and spectroscopy.

-Journal of Environmental Chemical Engineering: This is a magazine focusing on the field of environmental chemical engineering.

-Food: This journal focuses on food science and engineering.

-Journal of Field Robotics: This is a magazine about field robotics.

-Cell: This is a journal in the field of biology.

-International Journal of Molecular Science, Frontier of Plant Science and Journal of Energy Storage are also journals in the second field of SCI.