The embodiment of the utility model provides a 66kV series compensation platform measurement and control communication device. The 66kV series compensation platform measurement and control communication device comprises a current/voltage transformer, an analog-digital signal conversion unit, an FPGA and a series-parallel converter which are connected in sequence. Parallel signal data acquired andconverted by the current/voltage transformer and the analog-to-digital signal conversion unit is processed by the data processing unit and then converted into serial signal data by the serial-to-parallel converter, and the serial-to-parallel converter outputs the serial signal data to the background of the measurement and control device. The utility model provides a 66kV series compensation platform measurement and control communication device. According to the high-voltage distribution series compensation platform measurement and control communication method, parallel data are not required tobe packaged firstly and then transmitted through the Ethernet, and multiple paths of data are converted from parallel connection to series connection locally and then transmitted, so that the data synchronism is greatly ensured, the working complexity is reduced, and the high-voltage distribution series compensation platform measurement and control communication method is greatly improved.