The invention provides an FPGA-based configurable IP core for an erbium-doped fiber amplifier. The FPGA-based configurable IP core includes a configuration and status module, a gear control module, apower calculation module, an automatic gain control module, an automatic power control module and a pump output control module. The IP core is presented in the form of a soft core, supports multi-parameter configuration, conditional compilation and configuration registers to adapt to a variety of different needs, has a high degree of integration, compatibility and versatility, and has a fast response speed and better transient suppression. The use of the IP core can shorten the development cycle of the erbium-doped fiber amplifier, and is compatible with erbium-doped fiber amplifiers having avariety of demands. The IP core has a very high portability, is advantageous to China's advantageous position in the world of optical communications and has important market value.