According to Stark broadening theory, Stark broadening spectral lineprofile is asymmetric in essence considering plasma ions impact. The electricmicrofield distribution function is very important for the spectral line profile.The Stark broadening spectral line profile is described with different electricmicrofield distribution functions. The results show that the Stark broadeningspectral line profile is similar with the Holtsmark distribution and nearest-neighbor field distribution, and it is diversification with Mayer model. With thedecrease in the electrons impact broadening parameter, the influence of differentelectric microfield distribution functions is diminished. With the decrease inthe plasma ions impact parameter, the influence of different electric microfielddistribution functions is trailing off. The results also show that the action ofelectric microfield distribution functions is similar when the plasma ions impactparameter is very small. It is illustrated that the intense impact of plasma ionshas great influence on the spectral line profile. The results may have importantreference for the plasma diagnosis.Spectral diagnosis2006000950)和河北大学科研基金项目(2006Q10)资助