Variable pitch control device and variable pitch cabinet

The utility model provides a variable pitch control device and a variable pitch cabinet. The variable pitch control device comprises a logic control board, a plurality of driving control boards and an extensible interface. The number of the driving control boards is matched with that of paddle shafts in the wind generating set; the logic control board is in communication connection with the plurality of driving control boards; the plurality of driving control boards are in communication connection; and the extensible interface is arranged on the logic control board and is used for accessing the extended function module. According to the variable pitch control device, the logic control panel and the driving control panel corresponding to each paddle shaft are integrated, the logic control panel is provided with the extensible interface for being connected with the extended function module aiming at additional functions, the function module can be arranged according to actual requirements of a user, redundant c