The invention discloses a magnetic control transformer voltage control parameter acquisition and analysis device. The device comprises a Hall sensor, a data conditioning and conversion module, a master control acquisition module and a data message timing module. The Hall sensor is connected to a magnetic control winding of a magnetic control transformer. The data conditioning and conversion module is connected to a voltage transformer, a current transformer and the Hall sensor respectively. An input terminal of the master control acquisition module is connected to the data conditioning and conversion module and the data message timing module respectively, and an output terminal of the master control acquisition module is connected to a communication interface module. The master control acquisition module is also connected to a first buffer area and a second buffer area. The magnetic control transformer voltage control parameter acquisition and analysis device can timely provide a decision basis for a control device of the magnetic control transformer; high-speed and continuous voltage adjustment is realized; through the data message timing module, a time sign is set for a data message and a decision basis is provided for macro voltage control of a power grid.