The utility model provides a sled dress device based on big cluster well annotates pure system, include through the first header of first interface with methyl alcohol jar intercommunication, many and parallelly connected methyl alcohol feed line, every methyl alcohol feed line entrance point and first header intercommunication, the other end and methyl alcohol exit linkage, first header and duo zhi methyl alcohol feed line all locate on the sled seat. The utility model provides a big cluster well annotates the sled dress device of pure system, and the big cluster well's of being convenient for management is avoided the well head to annotate pure pump troubleshooting and is leaded to the well head to park, influence the low reaches production run, save the cost, reduce take up an area of, the quickening construction progress.