The construction of teachers' morality and style is an important standard for the cultivation of "double qualified" teachers. The era of "double qualified" teachers' cultivation requires the construction of teachers' morality and style. At the same time, the construction of teachers' morality and style has stimulated the endogenous driving force for the development of "double qualified" teachers. In order to promote the construction of teachers' ethics and style under the cultivation of "double qualified" teachers, we should give full play to the role of the two main bodies of teachers and schools and the role of system guarantee, so as to realize the recognizing of the law of the construction of teachers' ethics and style and the law of the growth and development of teachers' groups facing the modernization of education.