Hydrogel,one of soft materials like elastomers,is consisted of polymer networks and high content of water,and has promising applications in regenerative medicine and biomedical engineering[1].To improve mechanical properties of hydrogel,introduction of double-network,dynamic crosslinking or multifunctional crosslinker has been developed.Hyperbranched polysiloxane (HSi) has highly branched functional chains (i.e.amino,epoxy or vinyl group) with ellipsoidal or spherical structure.