On the basis of amines and thio compounds new type inhibitor compositions for zinc bromide and calcium bromide based brinest have been developed By the method of gravimetric testing in the laboratory in the temperature range of 120-150 оC investigated the inhibiting properties of the developed inhibitor compositions. Tests have shown that the synthesized corrosion inhibitors can effectively control the corrosion of carbon steel in high density brines at high temperatures. It was found that the effectiveness of inhibition of the developed inhibitor compositions after 72 hours of testing is 93-98%, respectively.