Eu-Tb lanthanide bimetallic organic frameworks （Ln-BMOFs） are inorganic organic hybrid materials with a periodic network structure and functional diversification，which are composed of lanthanide Eu-Tb as the center and organic ligands. It has unique luminescence characteristics，especially sharp absorption，and large Stokes displacement，which makes it exhibit excellent performance in the field of fluorescence sensing. By adjusting the ratio of Eu and Tb in MOFs，we can obtain a series of Eu_xTb_1-x doped MOFs with different luminous colors，and containing different proportions of Eu and Tb，which have similar or different luminous sensing mechanisms. Since the Eu-Tb lanthanide bimetallic organic frameworks have important research value in the field of fluorescence sensing，this paper will comprehensively and systematically review the research progress of lanthanide bimetallic organic frameworks from the aspects of background，sensing mechanism and application of fluorescence sensing.

Contents

1 Introduction

2 Luminescence and sensing mechanisms

2.1 Energy transfer

2.2 Changes in the coordination environment

3 Luminescence sensing applications

3.1 Detection of organic compounds

3.2 Detection of biomolecules

3.3 Detection of ions

3.4 Sensing of temperature and pH

4 Conclusions and prospects