To assess the ecological state of Lake Binagadi, studies were carried out on the physical and chemical properties of water and bottom sediments, as well as the content of heavy metals. For this purpose, in June-August 2021, we took samples of water, bottom sediments and soils for analyzes from different points of the investigated reservoir. Water samples were taken from different depths. It was found that the oxygen regime of the Lake Binagadi is completely disturbed. One of the main reasons for the small amount of dissolved oxygen in the lake water is the acceleration of biological processes as a result of the oxidation of pollutants. Due to this, the biochemical oxygen consumption in Lake Binagadi is several times higher than the norm. As a result of the influence of natural factors and wastewater discharged into the lake, along with an increase in the mineralization of the waters of Lake Binagadi, the concentration of cations and anions in the water sharply increases. Thus, the amount of Ca, Mg and chlorides is several times higher than the sanitary standard, and the amount of sulfates is several times higher. The concentrations of oil products and phenols, which are the main pollutants of the lake, are many times higher than the MPC. Synthetic detergents in the lake are also in excess of the norm. The main pollutants in the lake are several times higher than heavy metals such as copper, cadmium, iron, zinc, manganese. The radioactive background of the lake is 21 mkR / h. Table 1 shows the results of the analysis of water samples, bottom sediments and soils of the Binagadi Lake. Chart 1. Heavy metals Water sample from Lake Binagadi, mg/l The soil Bottom sediments Si 0,077 31,7 6,23 As 1,76 9,24 5,43 Hg 0,34 0,22 1,59 Cd 0,81 0,44 0,7 Cu 2,63 2,19 2,3 Co 10,15 0,52 1,21 Pb 0,84 0,1 0,78 Ni 2,11 1,03 0,84 Zn 1,16 3,78 17,89 Fe 17,7 116,9 122,5 Al 163,1 109,7 171,68 And in the end, it should be noted that recently our government has been paying sufficient attention to the problem of cleaning the lakes of Absheron. The project to clean up Lake Binagadi is carried out in accordance with the order of the President of the Republic I.A. Aliyev on the approval of the ―State program of socio-economic development of Baku and its settlements in 2014 -2016‖ and the decree ―On additional measures in the field of improving the ecological situation, protection and use of Lake Binagadi‖.