A terminal connecting method for connecting a crimp terminal (1, 2, 3, 4a, 4b, 4c) to an end portion (W1a) of a covered electric wire having an aluminum core wire at which the aluminum core wire is exposed, the crimp terminal (1, 2, 3, 4a, 4b, 4c) including a barrel portion (11, 21, 31, 41) configured to be wound around and crimped to the end portion (W1a), and a terminal portion configured to be connected to a connection object, the barrel portion (11, 21, 31, 41) and the terminal portion being arranged in a predetermined axial direction, the barrel portion (11, 21, 31, 41) including a bottom plate which extends in the axial direction and on which the end portion (W1a) of the covered electric wire is to be placed, and an inner barrel piece and an outer barrel piece which extend from the bottom plate on both sides in an intersecting direction intersecting with the axial direction in a plan view with respect to the bottom plate, an inner surface (11a, 31a, 41a) of the barrel portion (11, 21, 31, 41) being provided with a plurality of recesses (114, 614a, 614b, 614c) arranged dispersedly, and a seal member (14, 54a, 54b, 54c, 54d, 54e, 74a, 74b, 74c, 74d) being attached across a first region (11a-1, 41a-1) traversing the outer barrel piece in the axial direction, a second region (11a-2, 41a-2) traversing the inner surface (11a, 31a. 41a) in the intersecting direction at a location close to the terminal portion and a third region (11a-3, 41a-3) traversing the inner surface (11a, 31a, 41a) in the intersecting direction so as to intersect with a covered portion of the end portion (W1a), the method comprising: a placing step placing the end portion (W1a) on the inner surface (11a, 31a, 41a) of the barrel portion (11, 21, 31, 41) along the axial direction such that a tip (W11a) of the aluminum core wire at the end portion (W1a) overlaps a portion (142, 542a, 542b, 542c, 542d, 542e, 742a, 742b, 742c, 742c) of the seal member (14, 54a, 54b, 54c, 54d, 54e, 74a, 74b, 74c, 74d) attached to the second region (11a-2, 41a-2); and a crimping step winding and crimping the barrel portion (11, 21, 31, 41) to the end portion (W1a) with the inner barrel piece arranged inside, thereby fixing the crimp terminal (1, 2, 3, 4a, 4b, 4c) to the end portion (W1a) and sealing, with the seal member (14, 54a, 54b, 54c, 54d, 54e, 74a, 74b, 74c, 74d), a space between the inner barrel piece and the outer barrel piece, an opening of the barrel portion (11, 21, 31, 41) formed cylindrical located on a side of the terminal portion, and a space between the covered portion and the barrel portion (11, 21, 31, 41) characterized in that the seal member (14, 54a, 54b, 54c, 54d, 54e, 74a, 74b, 74c, 74d) is formed from adhesive gel, a portion (143, 543a, 543b, 543c, 543d, 543e, 743a, 743b, 743c, 743d) of the seal member (14, 54a, 54b, 54c, 54d, 54e, 74a, 74b, 74c, 74d) attached to the third region (11a-3, 41a-3) is arranged distant from an edge of the barrel portion (11, 21, 31, 41) intersecting the covered portion, and the placing step includes placing the end portion (W1a) such that the covered portion directly contacts with the inner surface (11a, 31a, 41a) of the barrel portion (11, 21, 31, 41) between the seal member (14, 54a, 54b, 54c, 54d, 54e, 74a, 74b, 74c, 74d) and the edge. a placing step placing the end portion (W1a) on the inner surface (11a, 31a, 41a) of the barrel portion (11, 21, 31, 41) along the axial direction such that a tip (W11a) of the aluminum core wire at the end portion (W1a) overlaps a portion (142, 542a, 542b, 542c, 542d, 542e, 742a, 742b, 742c, 742c) of the seal member (14, 54a, 54b, 54c, 54d, 54e, 74a, 74b, 74c, 74d) attached to the second region (11a-2, 41a-2); and a crimping step winding and crimping the barrel portion (11, 21, 31, 41) to the end portion (W1a) with the inner barrel piece arranged inside, thereby fixing the crimp terminal (1, 2, 3, 4a, 4b, 4c) to the end portion (W1a) and sealing, with the seal member (14, 54a, 54b, 54c, 54d, 54e, 74a, 74b, 74c, 74d), a space between the inner barrel piece and the outer barrel piece, an opening of the barrel portion (11, 21, 31, 41) formed cylindrical located on a side of the terminal portion, and a space between the covered portion and the barrel portion (11, 21, 31, 41) characterized in that the seal member (14, 54a, 54b, 54c, 54d, 54e, 74a, 74b, 74c, 74d) is formed from adhesive gel, a portion (143, 543a, 543b, 543c, 543d, 543e, 743a, 743b, 743c, 743d) of the seal member (14, 54a, 54b, 54c, 54d, 54e, 74a, 74b, 74c, 74d) attached to the third region (11a-3, 41a-3) is arranged distant from an edge of the barrel portion (11, 21, 31, 41) intersecting the covered portion, and the placing step includes placing the end portion (W1a) such that the covered portion directly contacts with the inner surface (11a, 31a, 41a) of the barrel portion (11, 21, 31, 41) between the seal member (14, 54a, 54b, 54c, 54d, 54e, 74a, 74b, 74c, 74d) and the edge.