A laminate type battery comprises a substrate, a power generating element which has at least one single cell made by a positive electrode layer, an electrolyte layer and a negative electrode layer which are sandwiched by collecting layers from both sides thereof, and an electric circuit portion having electrode terminals which connect the collecting layers to an external device and circuitries which connect the collecting layers and the electrode terminals. In the battery, the power generating element and the electric circuit portion are formed by stacking a plurality of layers on the substrate, and each of the layers is configured such that the power generating element and the electric circuit portion are formed by stacking the layers.