The present invention aims to provide a carrier for blood componentadsorption that enables selective and efficient adsorption removal ofgranulocytesand monocytes, and, at the same time, enables adsorption removal ofinflammatorycytokines. The present invention provides a carrier for blood componentadsorptioncomprising a water-insoluble carrier having a surface to which a functionalgroup(s)containing a silyl group and an amino group is/are introduced.