A solder supply unit (2, 6), comprising: a base member; a reel holder, provided on the base member and rotatably holding a reel of a tape-like solder material; a support member, provided on the base member; and a guidance member (25, 61), provided on the support member and guiding at least a lower surface of the tape-like solder material wound around the reel when the tape-like solder material is fed out, wherein the guidance member (25, 61) comprises: an extension portion (2512, 6112), guiding the lower surface of the tape-like solder material and extending in a predetermined direction; and a guidance side wall (2513, 6113), provided on both sides of the extension portion (2512, 6112), wherein the extension portion (2512, 6112) and the guidance side wall (2513, 6113) form a guideway (2511, 6111) of the tape-like solder material, the solder supply unit being characterized in that: the guidance member (25, 61) comprises a first opening penetrating the extension portion in an up-down direction, and the first opening is formed in a predetermined width and configured to receive a holding member (711, 712, 721) that holds the tape-like solder material guided by the guidance member (25, 61), the guidance member (25, 61) further comprises a lower guide member and an upper guide member extending in a feeding direction of the tape-like solder material, wherein the lower guide member includes the guideway, the extension portion and the guidance side wall on an upper surface thereof, the upper guide member is provided in an upper portion of the extension portion and includes a second opening extending in the feeding direction, and the first opening is formed in the lower guide member, the first opening extends toward an upstream side in the feeding direction from a downstream end of the lower guide member, and a formation range of the first opening matches a formation range of the second opening of the upper guide member. a base member; a reel holder, provided on the base member and rotatably holding a reel of a tape-like solder material; a support member, provided on the base member; and a guidance member (25, 61), provided on the support member and guiding at least a lower surface of the tape-like solder material wound around the reel when the tape-like solder material is fed out, wherein the guidance member (25, 61) comprises: an extension portion (2512, 6112), guiding the lower surface of the tape-like solder material and extending in a predetermined direction; and a guidance side wall (2513, 6113), provided on both sides of the extension portion (2512, 6112), wherein an extension portion (2512, 6112), guiding the lower surface of the tape-like solder material and extending in a predetermined direction; and a guidance side wall (2513, 6113), provided on both sides of the extension portion (2512, 6112), wherein the extension portion (2512, 6112) and the guidance side wall (2513, 6113) form a guideway (2511, 6111) of the tape-like solder material, the solder supply unit being characterized in that: the guidance member (25, 61) comprises a first opening penetrating the extension portion in an up-down direction, and the first opening is formed in a predetermined width and configured to receive a holding member (711, 712, 721) that holds the tape-like solder material guided by the guidance member (25, 61), the guidance member (25, 61) further comprises a lower guide member and an upper guide member extending in a feeding direction of the tape-like solder material, wherein the lower guide member includes the guideway, the extension portion and the guidance side wall on an upper surface thereof, the upper guide member is provided in an upper portion of the extension portion and includes a second opening extending in the feeding direction, and the first opening is formed in the lower guide member, the first opening extends toward an upstream side in the feeding direction from a downstream end of the lower guide member, and a formation range of the first opening matches a formation range of the second opening of the upper guide member. the guidance member (25, 61) comprises a first opening penetrating the extension portion in an up-down direction, and the first opening is formed in a predetermined width and configured to receive a holding member (711, 712, 721) that holds the tape-like solder material guided by the guidance member (25, 61), the guidance member (25, 61) further comprises a lower guide member and an upper guide member extending in a feeding direction of the tape-like solder material, wherein the lower guide member includes the guideway, the extension portion and the guidance side wall on an upper surface thereof, the upper guide member is provided in an upper portion of the extension portion and includes a second opening extending in the feeding direction, and the first opening is formed in the lower guide member, the first opening extends toward an upstream side in the feeding direction from a downstream end of the lower guide member, and a formation range of the first opening matches a formation range of the second opening of the upper guide member.