The invention provides a modular intelligent helmet and belongs to wearable devices in industrial plant areas. The modular intelligent helmet includes a helmet shell, an infrared module, a display module, a talkback module, an alarm module, a camera module, a battery module, a charging module, an illumination module, a voltage detection module, a positioning module and a control module; the helmetshell serves as an installation carrier for all the modules above, other modules are installed on the inner and outer sides of a helmet body, partial modules are detachably installed, and more convenience is provided for use. Moreover, an inner cover is also arranged in the helmet body and covered with an electromagnetic shielding layer capable of effectively preventing electromagnetic radiationgenerated by electronic devices from damaging the human body. The functions of the whole helmet are diversified, and the helmet is modular and detachable and can be flexibly deployed and combined freely. The structure is firm, waterproof and anti-collision, and therefore the helmet is not only safe but also intelligent and has a wider application domain.