A spout cap (10, 30, 60, 70) for closing a mouth portion of a spout main body (20, 40), the spout cap (10, 30, 60, 70) comprising: a cylindrical body portion (11, 31, 61, 71) made of resin; and a sealing film joined to the body portion (11, 31, 61, 71), wherein the sealing film has a thermal bonding layer which is configured to join to a distal end surface of the mouth portion when the mouth portion is closed, wherein the body portion (11, 31, 61, 71) includes: a front end and a base end; a pedestal portion having an annular shape; an engaging portion (15, 16) configured to engage with the spout main body (20, 40) to prevent the spout cap (10, 30, 60, 70) from detaching from the spout main body (20, 40), and a knob portion connected to an outer peripheral surface of the body portion (11, 31, 61, 71), the pedestal portion is provided at a position surrounding the mouth portion when the mouth portion is closed, an upper surface of the pedestal portion is provided to be flush with the distal end surface of the mouth portion when the mouth portion is closed, when the mouth portion is closed, an outer peripheral edge part of a surface of the thermal bonding layer of the sealing film is joined to the upper surface of the pedestal portion, and a radially inner portion of the outer peripheral edge part of the surface of the thermal bonding layer is joined to the distal end surface of the mouth portion, and the spout cap (10, 30, 60, 70) is configured such that, by lifting the knob portion to lift the body portion (11, 31, 61, 71), the engagement between the engaging portion (15,16) and the spout main body (20, 40) is released, and the sealing film, in which the thermal bonding layer is joined to the distal end surface of the mouth portion, is peeled off from the distal end surface of the mouth portion to open the mouth portion, characterised in that the pedestal portion is provided on an inner peripheral surface of the body portion (11, 31, 61, 71), and in that the knob portion is connected to the body portion (11, 31, 61, 71) at a position closer to the base end than the front end. a cylindrical body portion (11, 31, 61, 71) made of resin; and a sealing film joined to the body portion (11, 31, 61, 71), wherein the sealing film has a thermal bonding layer which is configured to join to a distal end surface of the mouth portion when the mouth portion is closed, wherein the body portion (11, 31, 61, 71) includes: a front end and a base end; a pedestal portion having an annular shape; an engaging portion (15, 16) configured to engage with the spout main body (20, 40) to prevent the spout cap (10, 30, 60, 70) from detaching from the spout main body (20, 40), and a knob portion connected to an outer peripheral surface of the body portion (11, 31, 61, 71), a front end and a base end; a pedestal portion having an annular shape; an engaging portion (15, 16) configured to engage with the spout main body (20, 40) to prevent the spout cap (10, 30, 60, 70) from detaching from the spout main body (20, 40), and a knob portion connected to an outer peripheral surface of the body portion (11, 31, 61, 71), the pedestal portion is provided at a position surrounding the mouth portion when the mouth portion is closed, an upper surface of the pedestal portion is provided to be flush with the distal end surface of the mouth portion when the mouth portion is closed, when the mouth portion is closed, an outer peripheral edge part of a surface of the thermal bonding layer of the sealing film is joined to the upper surface of the pedestal portion, and a radially inner portion of the outer peripheral edge part of the surface of the thermal bonding layer is joined to the distal end surface of the mouth portion, and the spout cap (10, 30, 60, 70) is configured such that, by lifting the knob portion to lift the body portion (11, 31, 61, 71), the engagement between the engaging portion (15,16) and the spout main body (20, 40) is released, and the sealing film, in which the thermal bonding layer is joined to the distal end surface of the mouth portion, is peeled off from the distal end surface of the mouth portion to open the mouth portion, characterised in that the pedestal portion is provided on an inner peripheral surface of the body portion (11, 31, 61, 71), and in that the knob portion is connected to the body portion (11, 31, 61, 71) at a position closer to the base end than the front end.