In mla format does the thesis statement on outline have to be same start research paper?

No, the thesis statement in your MLA-formatted outline doesn't have to be *exactly* the same as the thesis statement in your final research paper. While they should be very close in meaning and scope, the final thesis statement may be refined or slightly altered after you've completed your research and writing. The outline thesis serves as a working thesis, a roadmap for your research and writing. The final thesis, after revision, is the polished and precise statement that best reflects your completed argument.