A conductive path structure includes a conductor (28) that includes a first conductive portion and a second conductive portion which are connected to each other through a cut-off facilitating portion ( 30 ), and a semi -solid state insulation member ( 31 ) that is in a semi -solid state and covers the cut-off facilitating portion ( 30 ). When the cut-off facilitating portion ( 30 ) is cut off so as to separate the first conductive portion and the second conductive portion to each other due to an impact applied to the cut-off facilitating portion ( 30 ), the semi -solid state insulation member ( 31 ) covers end portions of the separated first conductive portion and the separated second conductive portion which are close to the cut-out facilitating portion ( 30 ).