The reactions of Zn(NO3)2·6H2O with mixed ligands of 5-amino-tetrazole (Hatz) and l,2,4,5-benzenetetracarboxylic acid (H4btec) under hydro(solvo)thermal conditions, gave two three-dimensional (3D) porous metal-organic frameworks (MOFs) of {Zn3(atz)2(btec)(DMF)2·DMF·2H2O}n (1) and Zn2(Hprz)(atz)(btec)(H2O)n (2) in the absence and presence of piperazine (prz), respectively. 1 and 2 were characterized by infrared spectra (IR), elemental analyses (EA) and single-crystal/powder X-ray diffraction. In 1, the adjacent 1D Zn3(btec)n2n+ chains are linked together by atz− ligands to form a 3D porous MOF with 1D tetragonal channels filled with coordinated and guest DMF, and lattice water molecules. In 2, the adjacent 2D Zn2(btec)n wavelike sheets are pillared through atz− ligands to generate a 3D layered-pillared porous MOF with 1D open channels, which are occupied by coordinated Hprz+ cations and coordinated water molecules. Additionally, thermal stabilities and photoluminescent properties of both compounds in the solid-state at room temperature have been investigated and discussed in detail. Two new MOFs constructed from Zn(II) salts with mixed ligands of 5-amino-tetrazole and l,2,4,5-benzenetetracarboxylic acid were synthesized under different reaction conditions. Structural diversities indicate that the reaction solvent system or the presence of organic base play crucial roles in modulating structures of these compounds. And more, their thermal stability and luminescence are also discussed. Display omitted •Two new Zn(II) MOFs based on mixed ligands were synthesized.•The two Zn(II) MOFs exhibit different structural motifs.•The two Zn(II) MOFs are photoluminscent in the solid state at room temperature.