This paper presents a novel design for a phase-change metasurface that enables dynamic multiplexing and encryption of near-field information. The metasurface is composed of Sb₂S₃ meta-atoms with the same dimension, designed to simultaneously satisfy the amplitude modulation requirements of different channels. By controlling the orientation angles of these meta-atoms, the metasurface can display three different nanoprinting images using polarization control as decoding keys. The reversible tunability of the Sb₂S₃ meta-atoms between amorphous and crystalline states allows for switching the images on and off, enhancing information security. The proposed metasurface offers advantages such as ultra-compactness, simple design, high information density, and security, making it promising for applications in high-secure optical data storage, ultracompact dynamic displays, and optical information encryption. The design strategy leverages the orientation degeneracy and polarization control governed by Malus's law, providing a unique solution for dynamic and multifold information multiplexing and encryption.This paper presents a novel design for a phase-change metasurface that enables dynamic multiplexing and encryption of near-field information. The metasurface is composed of Sb₂S₃ meta-atoms with the same dimension, designed to simultaneously satisfy the amplitude modulation requirements of different channels. By controlling the orientation angles of these meta-atoms, the metasurface can display three different nanoprinting images using polarization control as decoding keys. The reversible tunability of the Sb₂S₃ meta-atoms between amorphous and crystalline states allows for switching the images on and off, enhancing information security. The proposed metasurface offers advantages such as ultra-compactness, simple design, high information density, and security, making it promising for applications in high-secure optical data storage, ultracompact dynamic displays, and optical information encryption. The design strategy leverages the orientation degeneracy and polarization control governed by Malus's law, providing a unique solution for dynamic and multifold information multiplexing and encryption.