Radio frequency identification technology allows remote information to be obtained through radio waves between two or more objects. This technology is based on a tag that is attached to the back of the elements, it contains the information of the Fixed Assets and emits radio signals that are sent to a server to enter that information into a database that is housed in an application and from there take a control. This project manages to develop a system of inventory of fixed assets in the laboratory of biochemistry of the University of Santander, Bucaramanga headquarters using RFID technology (radiofrequency identification) through passive tags that work at ultra-high frequencies (UHF) purpose, reduce costs, time and make the inventory process more efficient, it also allows a traceability of Fixed assets, avoiding losses and allowing a better control of them.