The invention relates to a high molecular functional composite biological filler and a production method thereof. The filler is provided with two fixed sleeves, a plurality of filler braid belts and braid fixing lines, wherein each filler braid belt is provided with a bottom braid, a plurality of rows of annular soft pile loops and a plurality of rows of annular hard pile loops, wherein the annular soft pile loops are densely knitted and fixed on one surface of the outer part of the bottom braid and are formed by chemical fiber composite filaments, and the annular hard pile loops are formed by chemical fiber single filaments; and each filler braid belt is dyed by disperse dyes added with benzoquinonyl. The production method of the filler comprises the following steps of: taking chemical fiber single filaments and chemical fiber composite filaments as raw materials; warping, warp knitting, dyeing and weaving; twisting; fixing the braids; and manufacturing the fixed sleeves to obtain a finished product. By coupling a new biological carrier technology of catalytic enhancement on the modified benzoquinonyl surface with the traditional biological method, the invention not only has the advantage and action of sewage treatment of the general filler but also has good degradation effect on printing and dyeing wastewater, thereby providing a technical way for purifying organic matters which can not be degraded easily.