A mirror toothbrush for checking oral cavity, includes: a bristle cluster a bristle coupled body, one end of which the bristle cluster is coupled to, for supporting the bristle cluster a bristle body extension that extends from the bristle coupled body to a side a first mirror that is installed on a surface of the bristle body extension, and is installed for observation of the inner side of the teeth or a reflected inner side of the teeth a handle a handle extension that extends from a distal end of the handle to be inclined at a predetermined angle a second mirror that is installed on a surface of the handle extension, and is installed to reflect the outer side of the teeth or to reflect the inner side of the teeth toward the first mirror and a hinge pin that is installed at a coupling portion between the bristle coupled body and the handle, and supports rotation such that the bristle coupled body and the handle are folded or unfolded.一種用於檢查口腔的鏡子牙刷,包含:刷毛群;刷毛耦合本體,刷毛群係耦合至刷毛耦合本體,刷毛耦合本體用於支撐刷毛群;刷毛本體延伸部,從刷毛耦合本體延伸至一側;第一鏡子,設置在刷毛本體延伸部的表面,且設置用於牙齒之內側或反射內側的觀察;把手;把手延伸部,從把手末端延伸,而以預定角度傾斜;第二鏡子,設置在把手延伸部表面,以反射牙齒外側或反射朝向該第一鏡子之牙齒內側;及絞接插銷,設置於刷毛耦合本體與把手間的耦合部並支撐旋轉,使得刷毛耦合本體與把手折疊或展開。10‧‧‧刷毛群20‧‧‧刷毛耦合本體30‧‧‧刷毛本體延伸部50‧‧‧把手60‧‧‧把手延伸部70‧‧‧第二鏡子
