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• NIR laser triggered UC emissions in glass-stabilized CsPbX 3 perovskites are realized. • The UC mechanism is radiative energy transfer from Tm: KYb 2 F 7 to CsPbX 3. • Tunable DS/UC combined luminescence is demonstrated via tailoring halogens in glass and selecting diverse excitation modes. • Visualized anti-counterfeits using screen-printable CsPbX 3 inks are practically applicable. • The luminescence of anti-counterfeiting patterns is well retained after storing in water for 30 days. Photon upconversion (UC) of perovskite nanocrystals (PeNCs) is an attractive topic and has been recently realized in colloidal solution. However, this scheme suffers from system instability owing to the easy decomposition of PeNCs, which will greatly limit their applications. This work reports the achievement of radiative energy transfer UC of glass-stabilized CsPbX 3 (X = Cl, Br, I) PeNCs triggered by Tm: KYb 2 F 7 NCs upon 980 nm near-infrared (NIR) laser excitation, which shows the advantages of superior long-term stability and enables them to find practical application. Both CsPbX 3 @glass and Tm: KYb 2 F 7 @glass nanocomposites are fabricated by an in-situ glass crystallization method, and their mixtures yield tunable downshifting/upconverting combined luminescence via tailoring halogen components in glass and selecting diverse excitation modes (UV, NIR or concurrent UV and NIR). Consequently, screen-printing multiple anti-counterfeiting patterns containing ultra-stable CsPbX 3 PeNCs with convenient encryption/decryption and excellent water resistance are experimentally demonstrated, providing a very high level of security. [ABSTRACT FROM AUTHOR]