The invention provides a cartilage filling system and a surgical instrument group thereof.The cartilage filling system includes a filling push rod, a filling piece, a filling funnel and a filtering joint.The filling piece comprises an injection tube which is hollow cylindrical, comprises a first end part and a second end part and has a first inner diameter, and a holding part which is arranged on the injection tube.The filling funnel includes: a connecting piece with an air hole penetrating the external surface； and a funnel piece with a wide part and a narrow part and a second inner diameter, wherein the wide part is connected with the connecting piece, and the narrow part is detachably connected with the first end, and the second inner diameter is gradually reduced from the wide part to the narrow part to the second inner diameter equal to the first inner diameter.One end of the filter joint is connected with the second end, and the other end is used for connecting with the needle cylinder, and the filter joint comprises a fan shaped support part and a filter membrane.本創作提供軟骨充填系統及包含其之手術器械組。軟骨充填系統包含充填推桿、充填件、充填漏斗及過濾接頭。充填件包含係為中空圓柱狀、包含第一端部及第二端部且具有第一內徑的注射管；以及設置於注射管上的握持部。充填漏斗包含：其之外表面具有貫穿外表面的氣孔的連接件；以及包含寬部及窄部且具有第二內徑的漏斗件，其中，寬部與連接件連接，且窄部與第一端部可拆卸地連接，第二內徑從寬部至窄部逐漸減少至第二內徑等於第一內徑。過濾接頭的一端與第二端部連接，且另一端用於與針筒連接，且過濾接頭包含扇片形支持部以及濾膜。
