The focus of this study is to identify factors that affecting the desires of investors or lenders to invest in Indonesian Small Medium Enterprises (SMEs) through the service provider peer-To-peer lending (P2P lending). This is because there are P2P lending that could not raise funds amounts required by the borrower (SMEs) in full and within the given deadline. This research uses quantitative method using survey to 214 respondents and data is analyzed using Partial Least Square-Structural Equation Modeling (PLS-SEM) approach. Result of analysis from this research identified the factors that influence investors' desire to invest in Indonesian SMEs namely perceived risk and investor trust to P2P lending platform (platform trust). Perceived risk factors inversely proportional to the level of investors' desire to invest capital. While the platform factor is directly proportional to the desire of investors to invest capital. Thus, it can be concluded that the less risk potentially arise and the higher investors' confidence in the P2P lending platform, the higher the investors' desire to invest.