The utility model discloses a modularization function display mechanism, include that power input is two goes through round, transmission train, display part and support part, two round drive drive wheel systems of going through rotate, does the transmission train include 1 6 individual gear or gear train, the supporting part divides including gasket and position nail, partial gear or gear train are installed on the gasket through position nail, and can use respective nail for central free rotation, the function wheel is installed on the gasket through the position nail, and can use the position nail for central free rotation, installs the shifting block on gear or the gear train, and the function wheel is stirred to the shifting block. The beneficial effects are that: the display module that the number of teeth and the drive ratio of adjustment function wheel can produce multiple difference, when core demonstration function is extended to follow -up basic core its corresponding functional module of selective installation can, consequently, the standard component that this function display mechanism can be equivalent to the modular uses, has improved design efficiency, has shortened the design cycle, has reduced manufacturing cost.