This paper analyzed the current survival status of mentally disabled person:hard family living condi-tions, lack of equal employment opportunity, and in isolation for a long time. Based on the perspective of law and ethics, it puts forward to strengthen the legislative work, establish and improve the supervision mechanism, perfect the judicial procedure of right remedy for mentally disabled in the view of legal. It should be guided by the ethical thought, set up ethical morality that respect, concern, care for the mentally disabled, construct barrier-free humanity environment, and realize a series of measures that the mentally disabled could participate in society in the view of ethics, to further improve the environment for the mentally disabled, to maintain their legitimate rights and interests, and to safeguard the realization of life value and social value for the mentally disabled.