Robo-Advisor represents the important application of AI in Fin-tech field. It has made significant progress and acquired extensive recognition. With capital market maturing and expanding，and large numbers of investment tools appearing，Robo-Advisor provides financial institutions the great possibility of serving the retail customers economically，conveniently，transparently and massively. Robo-Advisor helps clients implementing asset allocation and optimizing the portfolio yield & risk dynamically and automatically in a more rational and disciplined way. Domestically，Trust companies have not yet established the good foundation for investment in capital market and asset allocation in the private trust or family trust business line. The writer believes that Trust companies could promote their private trust business by means of Robo-Advisor technology or cooperation with Robo-Advisor platform instead of building the costly investment manager teams. It is discussed and analyzed in this report that Robo-Advisor could become one of the Fin-tech revolution areas for the Trust industry.