The utility model discloses a high-density modularized data voice separator. The high-density modularized data voice separator comprises a circuit board and a low-pass filter arranged on the circuit board; and the low-pass filter is composed of a plurality of modularized filter components. According to the defects in the prior art, the modularized filter components are adopted and are installed on the normalized circuit board, and therefore, the data voice separator has the advantages of stable performance, low crosstalk, fast replacement, easiness in capacity expansion, short production cycle and low cost in mass production.