Two zeolite-topology luminescent metal-organic frameworks LMOF-1 and LMOF-2, constructed with the rich electronic triazine ring ligand and Zn(Ⅱ) were employed as fluorescent probes for the detection of carcinogenic organic pesticides trifluralin and nitrofen. The detection mechanism for trifluralin by LMOF-1 and LMOF-2 was assigned to the charge transfer and the fluorescence resonance energy transfer, confirmed by fluorescent quenching experiments and density functional theory calculations. And the detection mechanism for nitrofen by LMOF-1 and LMOF-2 was mainly assigned to the charge transfer. The limit of detection for trifluralin of LMOF-1 could be down to 5.54 μmol•L-1 with the detection efficiency up to 2.959±0.488 L•μmol-1.