Regardless of the type of biological tissue, a sufficient joining force can be quickly obtained the problem of an adhesive bonding biological tissue other than the target biological tissue can be prevented and the adhesive can be prevented from becoming impossible to apply due to curing. There is provided a biological-tissue joining apparatus including an energy supplying part that clamps, with pressure, biological tissue to be joined and melts protein in the clamped biological tissue by supplying energy to the biological tissue and an adhesive supplying part that supplies an adhesive to the biological tissue, wherein the adhesive supplying part includes a discharge port that discharges the adhesive to a contact surface of the energy supplying part in contact with the biological tissue.
