The concept of e-commerce adoption has appeared in libraries for decades, but its adoption is slow and partial. In Indonesia, ecommerce is growing rapidly and has the potential to be adopted in various business processes including e-library. The purpose of this study is to develop e-commerce adoption strategies for e-library development in Indonesia. The Systematic Literature Review (SLR) was chosen as the main research method to meet the objective. One of the SLR phases is synthesis, which was conduted using the SWOT (Strength, Weakness, Opportunity, and Threat) analysis. Then SWOT matrix was validated by expert librarians. The findings of this study are summarized as recommendations to enhance mobile-based services, to develop ecommerce business centers, as well as to integrate library loan and payment systems. e-Commerce system in e-library is better developed by professional software vendors to overcome limited software engineers in most libraries. Collaboration with banks is also needed for legal payment. Besides, optimization of library resource subscription and open access collection can be achieved by consortium of several libraries. Promotion of e-commerce adoption in e-library is also important to increase its sustainability. Validation by experts from academic, national, and research librarians refines the SLR results to meet libraries' vision and mission.