Abstract: Based on the minimal length uncertainty, both the spectral lines and natural broadening of spectral lines of hydrogen atom may be corrected in the sub-nano-meter space time. It is interesting to obtain the related spectral line profile of the corrected hydrogen atom spectrum, which is presented in a proposal for the spectral line profile of hydrogen atom spectrum based on the minimal length uncertainty. It is shown that, based on the minimal length uncertainty, the hydrogen atom spectrum is modified.