A packaging machine comprising: a linear type conveyance unit which conveys a packaging bag in a linear manner in a first direction; a rotary type conveyance unit which conveys the packaging bag in a rotational manner in a second direction; a delivery unit which delivers the packaging bag between the linear type conveyance unit and the rotary type conveyance unit; a first processing system (21, 22, 23, 25) which performs processing on the packaging bag conveyed by the linear type conveyance unit; and a second processing system (32, 33, 34, 36, 37, 38, 61) which performs processing on the packaging bag conveyed by the rotary type conveyance unit, characterized in that the linear type conveyance unit includes: a first supporting unit which moves in a reciprocal manner in the first direction between a first conveyance position and a second conveyance position, the first supporting unit moving from the first conveyance position to the second conveyance position while supporting the packaging bag in a suspended state, and moving from the second conveyance position to the first conveyance position without supporting the packaging bag; and a second supporting unit, fixed with respect to the first direction, and able to perform a gripping action and a grip release action so as to receive the packaging bag from the first supporting unit and support the packaging bag in a suspended state when the first supporting unit is at the second conveyance position, and to deliver the packaging bag to the first supporting unit and not support the packaging bag when the first supporting unit is at the first conveyance position; and the second processing system includes an opening processing unit which opens the packaging bag. a linear type conveyance unit which conveys a packaging bag in a linear manner in a first direction; a rotary type conveyance unit which conveys the packaging bag in a rotational manner in a second direction; a delivery unit which delivers the packaging bag between the linear type conveyance unit and the rotary type conveyance unit; a first processing system (21, 22, 23, 25) which performs processing on the packaging bag conveyed by the linear type conveyance unit; and a second processing system (32, 33, 34, 36, 37, 38, 61) which performs processing on the packaging bag conveyed by the rotary type conveyance unit, a first supporting unit which moves in a reciprocal manner in the first direction between a first conveyance position and a second conveyance position, the first supporting unit moving from the first conveyance position to the second conveyance position while supporting the packaging bag in a suspended state, and moving from the second conveyance position to the first conveyance position without supporting the packaging bag; and a second supporting unit, fixed with respect to the first direction, and able to perform a gripping action and a grip release action so as to receive the packaging bag from the first supporting unit and support the packaging bag in a suspended state when the first supporting unit is at the second conveyance position, and to deliver the packaging bag to the first supporting unit and not support the packaging bag when the first supporting unit is at the first conveyance position; and the second processing system includes an opening processing unit which opens the packaging bag.