The NSB emblem is patterned with the round-shaped scripts that have been inscribed on ancient eaves tile dating back to the Han Dynasty in Chinese history. As disclosed by historians, such designs imply a strong aspiration for good fortune. With ROC national emblem at the center of the layout, the NSB emblem is symbolic of its identity as a purely national organization serving the interests of the nation (ROC). In the periphery are four Chinese seal characters displayed in red on a white background, which reads “as solid as a huge rock” in English—apparently likened to the nation's great expectation of the Bureau. Around the outermost are two branches of deep green olive on a golden base, representing NSB's ability to contribute to a better society with people living in harmony and peace.

    In short, the emblem does give a hint that the whole people have entrusted the Bureau to serve as a pillar of the nation and carry out its duties in safeguarding national security and maintaining social stability.