Owner equity is one of the most important parts to constitute capital of an enterprise in general, in a Joint Stock Bank in particular. However, Vietnam Joint Stock Banks’ owner equity has been too low compared with the performance requirement in the system. In addition, equity mobilization in these banks has been proved insufficient and inadequate. The purpose of this research is to study equity mobilization in Vietnam Joint Stock Banks (VNJSBs). The study analyzes and assesses the current situation of VNJSBs’ owner equity based on secondary data collected from domestic and foreign data. Then, it proposes some resolutions to enhance the mobilization owner equity such as encouraging VNJSBs to merge with others, lifting restriction on foreign investment to attract investors and completing all necessary legal bases for equity mobilization.