Modular Building Block Easy to Assemble

A modular building block easy to assemble, comprising a base plate, a plurality of basic parts for connection, and electronic individual components, wherein a plurality of first protrusions are disposed on, upper surfaces of the base plate and the basic parts, and slots matched and connected with the first protrusions are formed in lower surfaces of the basic parts and the electronic individual components, a plurality sets of first conductive pins and conductive metal sheets abutting against and connected with the first conductive pins are disposed inside the basic parts, top ends of the first conductive pins penetrate through the first protrusions of the basic parts to be exposed to an outside, the conductive metal sheets are provided with elastic jaws penetrating out of side walls of the basic parts, control, panels, and electronic devices and, conductive contacts integrated on the control panels are disposed inside the electronic individual components, and the conductive contacts are disposed in the slots of the electronic individual components.