The completeness of check-in and satisfaction to visit will be affected by unfamiliarity with registration process and hospital settings of first-visit patients from registration online, causes analyzed including unclear instructions in online- registration process, indefinite signs, inadequate guidance from volunteers. Integration among teams may improve measures such as process instructions for first-visit online registration, setting signs and guidance from volunteers, etc., achieving to increase patient's accurate implementation rate for first-visit check-in by 1% and increase overall satisfaction to outpatient visits by 2.7%. In the future, as to new OPD building in the Hospital, it is recommended to carry on overall planning for setting signs, increasing guidance service from volunteers, which may significantly helpful for OPD's medical service quality.