Lipoprotein(a)receptors on monkeyliver cell ular membranes were round by Western blotting.Since lipoprotein (a) is structural homology to plasminogen, the lipoprotein(a)receptors were further verified by plasminogen antibOdies.The experiments were conducted as follows :first ,the primary extract of the membrane receptors were made from fresh monkey liver by homogenaion, centrifugation and ultrasonic treatment etc.Soon,the extract was separated by electrophoresis and transfered Onto nitrocellulose(NC) filters.Then,lipoprotein(a)purified from human plasma bound with high affinity to isolated China rhesus monkey liver cellular membrane lipoprotein receptors on nitrocellulose blots and in a solid-phase assay, and it was further verified by plasminogen antibOdies. The results showed that there existed lipoprotein(a) receptors.Thus we conclude that lipoprotein (a) has its own catabolism pathway.