Abstract At present, the people's legal awareness is becoming stronger and stronger, the demand for legal related business is also increasing, and the volume of legal consultation business is increasing. Traditional legal consultation business processing methods are difficult to adapt to the actual needs. In view of the fact that smart phone applications have become the mainstream at present, the smart phone platform is used to develop the software system of legal consultation business. For the development direction with broad market prospects. Based on this, this paper combines the author's many years of legal experience, analyses the current situation of legal consultation business in China, investigates and studies different types of legal consultation business, and develops a mobile legal consultation system using Android mobile phone platform.