Monitoring organophosphorus pesticide residues in agricultural environment is of great significance for the safety control of agricultural products from the source of breeding and planting. Based on zirconium ions and 1,2,4,5-tetramine (4-carboxyphenyl) benzene (H4TCPB), a kind of blue fluorescent Zr-TCPB metal-organic frameworks (MOFs) materials was synthesized. And the Zr-TCPB MOFs and quantum dots (QDs, emission at 625nm) was employed to develop a proportional fluorescent sensor using the QDs@MOFs complex. Based on the specific fluorescence quenching response of Zr-TCPB MOFs to some kinds of organophosphorus pesticides, a proportional fluorescence chemical sensing technology was constructed to realize the rapid, sensitive and visual detection of organophosphorus pesticides such as methyl-parathion and parathion in agricultural environment. The limits of detection (LOD) for methyl-parathion and parathion were 1.9μg/L and 4.9μg/L, respectively, and the linear detection range was 0.005~2mg/L. Based on the sensitive fluorescence quenching effect, it had a good specific detection ability for methyl-parathion and parathion. In addition, the fluorescence analysis method can be effectively applied to the rapid field determination of methyl-parathion and parathion in water samples of agricultural environment. The recovery rate of methyl-parathion was 93.23%~116.46%, with an average RSD of 5.29%, and the recovery rate of parathion was 92.52%~107.83%, with an average RSD of 5.74%. The results showed that the developed method had great application value in the rapid monitoring of pesticides residue in agricultural environmental samples.