Arc welding control method and arc welding device

An arc welding control method of controlling a welding current in short-circuit arc welding of feeding a welding wire toward a base metal and alternating a short-circuit state and an arc state, the arc welding control method comprising:

• executing, in the short-circuit state, a first increase in the welding current with a first slope, a first decrease in the welding current to a first bottom value after executing the first increase, a second increase in the welding current with a second slope after executing the first decrease, a second decrease in the welding current to a second bottom value that is smaller than the first bottom value after executing the second increase, and an opening of the short-circuit by an increase in the welding current after executing the second decrease, wherein
• the opening of the short-circuit shifts a state from the short-circuit state to the arc state.