Objective To investigate the oral health-related quality of life in patients with oral lichen planus（OLP） using the Chinese version of the oral health impact profile（OHIP）-14. Methods 51 patients with OLP were included and completed the questionnaire of OHIP-14 subsequently the REU scoring system was utilized to record the local condition and a visual analogue scale（VAS） to rate the pain they experienced. The reliability and validity were analyzed by SPSS 16.0 software. Results The score of OHIP-14 was 21.67±9.45, Cronbach’s alpha of the translated scale was 0.901. The items were divided into 5 domains by factor analysis. There was certain logical relation between the items in the same domain. There was highly significant association between the OHIP-14 score and REU score as well as VAS score（r=0.608, 0.807, P
