In the process of social mobility in contemporary China, it is found that the rural migrant women are still in the weak position of the welfare from the concept of large welfare. There are many problems which can not be ignored, such as work environment, wages, hours of work, maternity benefits, labor protection, housing welfare, education welfare, subsidized welfare, public services and social insurance. Factors influencing the welfare of the rural migrant women in Henan are multidimensional, including economic structure, socio-cultural, social policy and institutional arrangements of the macro-level, labor units and residential community of the meso-level, and personal ascriptive factors and after induced factors of the micro-level. In order to provide equal access to the welfare for rural migrant women, efforts should be taken from the following aspects: For the macro-level, we need to continue to deepen the reform of the household registration system so as to improve the public services for migrant women, to improve the social welfare services policy and regulatory system to give full play to the supervisory role of government management, and to publicize the culture of gender equality vigorously as well as strive to implement equal welfare.For the meso-level, we enhance the sense of responsibility of labor units in welfare so as to serve rural migrant women better and further develop community public facility to provide more service for migrant women.For the micro-level, the rural migrant women need to enhance self-human capital for improving the level of self-employment and enhance self-sense of well-being and gender awareness for safeguarding the self-welfare interests. Only in this way, Could we better promote the level of social welfare of rural migrant women, promote the common development of the gender and promote the integration development of urban and rural areas. <<