To provide a new and improved combination type power switch housing/electric connector housing module suitable for attachment and usage in a panel or a wall member.

In the combination type power switch housing/electric connector housing module, the power switch housing is provided with a power switch housing upper side section internally arranged with a common electric contact, a make and break electric contact and a rocking piece type actuator, and a power switch housing lower side section integral with the power switch housing upper side section and provided with a cylindrical section having a penetrating bore wherein the electric connector housing can be fixedly internally fastened.