The invention relates to a resin cap suitable for fixing a resin anchoring cartridge, belonging to the supporting field of roads and tunnels. The resin cap mainly comprises a cone-shaped body at the upper part and a tubular structure at the lower part; the resin cap is made of plastic material and is made by adopting the striking color; the upper part of the resin cap adopts the cone-shaped body,a neck is arranged at the side edge of the cone-shaped body, and the outer edge of the cone-shaped body adopts the petal-shaped structure; the lower part of the resin cap adopts the tubular structure, the inner wall of a tube body is provided with stopping latches, and a pin hole is reserved at the side edge of the tube body. One end of the resin anchoring cartridge is inserted into the resin cap, the resin cap and the resin anchoring cartridge can be fed into an anchor rod hole by manpower or by a trolley large-arm mechanism, the resin cap is used for fixing the resin anchoring cartridge in the anchor rod hole, and the resin anchoring cartridge can not drop from the interior of the hole under the action of self gravity. The resin cap solves the problem that the resin anchoring cartridge is easy to drop from the interior of the hole and the problem of the safety of operators when the traditional resin anchoring cartridge is installed by manpower or by a trolley, thereby being safe andreliable.