A method for manufacturing a sheet-like member using a continuous sheet, the sheet-like member associated with an absorbent article, the method comprising: a supplying step (L4aS) of supplying the continuous sheet, the supplying step being performed by transferring the continuous sheet to a processing section by transporting the continuous sheet in a direction of transport, the direction of transport being a direction in which the continuous sheet continues; a processing step (L4aK) of processing a portion of the continuous sheet by the processing section at an interval in the direction of transport, the portion being to be the absorbent article, the processing step being performed at a predetermined position in the direction of transport; a detecting step of detecting a trace of the processing left on the continuous sheet and outputting a detection result, the supplying step including adjusting a direction-of-transport tension value (43, 43A, 43B, 44) of the continuous sheet based on the detection result, the direction-of-transport tension value of the continuous sheet being a tension value at a time of transferring the continuous sheet to the processing section, wherein if the detection result indicates that the trace of the processing is located downstream in the direction of transport with respect to a target position in the continuous sheet, the tension value is increased, and if the detection result indicates that the trace of the processing is located upstream in the direction of transport with respect to the target position, the tension value is decreased, wherein the processing is defined as an upstream processing, another processing is defined as a downstream processing, the downstream processing is performed, at an interval in the direction of transport, at a position downstream in the direction of transport with respect to a position where the upstream processing is performed, a portion of the continuous sheet that is to be the absorbent article is subject to the downstream processing, and the trace of the processing is detected at a position downstream with respect to the position where the downstream processing is performed. a supplying step (L4aS) of supplying the continuous sheet, the supplying step being performed by transferring the continuous sheet to a processing section by transporting the continuous sheet in a direction of transport, the direction of transport being a direction in which the continuous sheet continues; the supplying step being performed by transferring the continuous sheet to a processing section by transporting the continuous sheet in a direction of transport, the direction of transport being a direction in which the continuous sheet continues; a processing step (L4aK) of processing a portion of the continuous sheet by the processing section at an interval in the direction of transport, the portion being to be the absorbent article, the processing step being performed at a predetermined position in the direction of transport; the portion being to be the absorbent article, the processing step being performed at a predetermined position in the direction of transport; a detecting step of detecting a trace of the processing left on the continuous sheet and outputting a detection result, the supplying step including adjusting a direction-of-transport tension value (43, 43A, 43B, 44) of the continuous sheet based on the detection result, the direction-of-transport tension value of the continuous sheet being a tension value at a time of transferring the continuous sheet to the processing section, wherein if the detection result indicates that the trace of the processing is located downstream in the direction of transport with respect to a target position in the continuous sheet, the tension value is increased, and if the detection result indicates that the trace of the processing is located upstream in the direction of transport with respect to the target position, the tension value is decreased, wherein the processing is defined as an upstream processing, another processing is defined as a downstream processing, the downstream processing is performed, at an interval in the direction of transport, at a position downstream in the direction of transport with respect to a position where the upstream processing is performed, a portion of the continuous sheet that is to be the absorbent article is subject to the downstream processing, and the trace of the processing is detected at a position downstream with respect to the position where the downstream processing is performed. a portion of the continuous sheet that is to be the absorbent article is subject to the downstream processing, and the trace of the processing is detected at a position downstream with respect to the position where the downstream processing is performed.