ELECTRONIC CONTROL DEVICE

The present invention provides an electronic control device including: a housing which has an opening portion formed at one side thereof; printed circuit boards which are inserted into the housing; and a connector unit which includes connector pins coupled to the printed circuit boards and closes the opening portion of the housing, in which the printed circuit boards include a first printed circuit board, and a second printed circuit board which is connected to one side of the first printed circuit board through a substrate connecting portion and provided below the first printed circuit board, the connector unit includes a first connector pin connected to the first printed circuit board and a second connector pin connected to the second printed circuit board, and an outer connector cover of the connector unit is disposed to be directed upward.