The invention discloses a
fluorescence 3D code generating method, identifying method, identifying device and
system. The generating method comprises the following steps: providing a carrier having a 2D plane matrix; printing 2D code on the 2D plane matrix of the carrier; adding a
fluorescence material on a printed oil ink, and printing a third dimensional
fluorescence array on the 2D plane matrix prior to or after printing the 2D code so as to enable the third dimensional fluorescence array and the 2D code overlap to form a
plane figure of a fluorescence 3D code. According to the invention, the fluorescence 3D code generating method, through printing the 2D code and the third dimensional fluorescence array having the fluorescence material on the 2D plane matrix, enables the third dimensional fluorescence array and the 2D code to overlap so as to form the
plane figure, and further, in accordance with needs, can acquire 3D codes of different fluorescence materials, ad has a large
data capacity. In order to acquire a fluorescence
signal of the fluorescence 3D code, UV light, purple light or
blue light,
green light laser light are required for the excitation, which can guarantee information safety and reliability.