A light-inverse type guidelight plate adopted for a backlight module having at least one lighting member includes a reflection portion, a reflecting member partially covering the reflection portion, and a light-guiding portion connecting the reflection portion for providing a displaying region. Wherein the light-guiding portion locates behind the lighting member's back, which faces the reflecting member and dispose in a slot of the reflection portion. The light-guiding portion is shaped variously to meet requirements. The reflection portion has a reflection face, which reflects light emitted from the lighting member to the light-guiding portion to get a high uniformity thereof.