A bone filler implanting system comprises a bag (1) and a delivery device (2). A distal end of the bag (1) is fixedly connected to a sealing head (11)； the sealing head is closed at its distal end and has a blind hole (111) at its proximal end, and the blind hole (11) has an opening towards the interior of the bag (1). The bag (1) has micro-pores (12). The delivery device (2) comprises a liner core (23), a delivery tube (21), and a sleeve tube (22). The delivery tube (21) is a rigid tube, and a distal end of the delivery tube (21) is detachably connected to a proximal end of the bag (1). The liner core (23) is slidably inserted into the delivery tube (21). A distal end part of the liner core (23) is a curved section (231), and said curved section (231) extends out of the distal end of the delivery tube (21). The distal end of the liner core (23) is inserted into the blind hole (111) of the sealing head (11) through the delivery tube (21) and the interior of the bag (1)； the bag (1) wraps the curved section (231) of the liner core (23). A distal end part of the sleeve tube (22) is a flexible section (221), and a proximal end part of the sleeve tube (22) is a rigid section (222)； said flexible section (221) is rigid in the radial direction. The sleeve tube (22) is sleeved on the delivery tube (21) and the bag (1). When the delivery device (2) is operated, the sleeve tube (22) slides axially towards the proximal end of the conveying tube (21), and the bag (1) is exposed.
