This work presents three series of Eu/Tb metal-organic frameworks (MOFs) containing benzophenone-4,4'-dicarboxylic acid (H 2 BPNDC), 4,4'-dicarboxydiphenyl ether (H 2 OBA), and terephthalic acid (H 2 BDC) as the ligands. Eu/Tb MOFs have the same structural features in that their 3D frameworks are simplified as 2,3,10-connected {4 2 .6} 2 {4 6 .6 18 .8 19 .10 2 }{4} 2 topological networks. The solid-state fluorescence spectra of three Eu/Tb MOF series are attributed to the combined emissions of 5 D 0 → 7 F J ( J = 1-4) transitions in Eu 3+ and 5 D 4 → 7 F J ( J = 6-5) transitions in Tb 3+ . The n Eu : n Tb of Eu/Tb MOFs is optimized as 1:69 based on the relationships between I Tb(545) / I Eu(614) and n Eu : n Tb ; that is, Eu 0.0143 Tb 0.9857 -L (L = BPNDC 2- , OBA 2- , and BDC 2- ) were selected to carry out the following temperature ( T )-sensing tests. The fluorescence mechanism of Eu 0.0143 Tb 0.9857 -L can be explained by a ligand-to-metal charge transfer combined with an intermetallic Tb 3+ → Eu 3+ energy transfer. The T -dependent fluorescence indicates linear relationships with sensitivities of 1.85% K -1 for Eu 0.0143 Tb 0.9857 -BPNDC, 6.49% K -1 for Eu 0.0143 Tb 0.9857 -OBA, and 0.28% K -1 for Eu 0.0143 Tb 0.9857 -BDC. The influence of T on the lowest excited triplet energy levels ( T 1 values) of the ligands reveals that the ligand energy regulation impacts their fluorescence properties, including the sensitivity, fluorescence quenching rate, quantum yield, and fluorescence lifetime. This shows that Eu 0.0143 Tb 0.9857 -BPNDC is sufficiently sensitive to T , making it applicable in noncontact T measurements.