Abstarct: Present study investigates the relationship between investors EI and the results from their decisions from the ability and overcoming behavioral bias from which most investors suffer. EI is a psychological charectristics which determines how a person distinguishes, understands or controls their feelings,and finally uses them in decision makings. According to the data, obtained from investors in Tehran stock exchange using"behavioral finance" and "emotional intelligence" questionnaires, the extent to which investors suffer from each five behavioral bias, representativeness, mental accounting, loss aversion, over confidence and self control, was tested by short version of bar-on test. Results of Spearmans non-parametric correlation analysis showed no meaningful relationship between EI and behavioral bias in decision makings any most of the cases. Result show a meaningful relationship(negative correlation) between over confidence and EI it means people with a higer level of EI have lower ability in overcoming the over confidence bias. People with higer grade in stress management in EI can better overcome the representativeness bias. People with low experience, have higer average grade in EI , and there is a meaningful relationship between total EI and two EI component, inter personal and adaptability with the investors experience.Also, less experience people, suffer from representativeness more , and the difference is considerable. High educated people have a higer level of EI , but they suffer from "mental accounting" bias more and the difference is considerable