The invention provides a blocking-chain-type anchor machine and belongs to the field of ship equipment. The blocking-chain-type anchor machine comprises a pair of mounting blocks. A rotating column isrotatably connected between the upper ends of the two mounting blocks; a rotating motor is fixedly connected to one of the mounting blocks, and the end of a motor rotating shaft of the rotating motoris fixedly connected to the rotating column; one ends of the two mounting blocks are fixedly connected with a blocking chain mechanism; the blocking chain mechanism comprises a mounting frame, one end of the mounting frame is fixedly connected to the mounting blocks, and the other end of the mounting frame is fixedly connected with a plurality of blocking chain assemblies; each blocking chain assembly comprises a vertically-arranged telescopic rod, the upper ends of the telescopic rods are fixedly connected to the mounting frame, and a limiting mechanism is arranged on one side of the lower end of each telescopic rod; each limiting mechanism comprises a plurality of limiting blocks, connecting rods are fixedly connected between the limiting blocks, and a protruding cylindrical hand-held column is fixedly connected to one of the connecting rods; and matching grooves matched with the limiting mechanisms are formed in the side portions of the lower ends of the telescopic rods, and the limiting blocks are slidably connected into the matching grooves. The blocking-chain-type anchor machine has the self-protecting function and is provided with the blocking chain mechanism.