A machine tool data acquisition device for processing a plurality of far-end acquisition commands transmitted from a plurality of monitoring devices is provided. The far-end acquisition commands are used for requesting a plurality of parameters from a machine tool, and the plurality of parameters constitute a combination of parameters, including: a monitoring device connection module for receiving the plurality of far-end acquisition commands from the plurality of monitoring devices; a command establishing module for establishing a plurality of near-end acquisition commands according to the far-end acquisition commands, wherein there is an sequence among the plurality of near-end acquisition commands, and each near-end acquisition command corresponds to a plurality of parameter acquisition requests used for requesting and acquiring all of the parameters of one combination of parameters; and a machine tool connection module for sequentially transmitting the parameter acquisition requests corresponding to the near-end commands to the machine tool according to the sequence among the near-end acquisition commands, and acquiring the parameters corresponding to the parameter acquisition requests from the machine tool.