MAGNETIC SENSOR

A magnetic sensor on which structural improvement has been performed so that it is easy for a magnetic sensor with good sensor sensitivity to appropriately exhibit original functions is provided. A magnetic sensor (10) including a first magneto resistive effect element (21) located on a first surface (15A) of a substrate (15) and having a sensitivity axis in a first direction that is one of in-plane directions of the first surface (15A), a positioning soft magnetic body (40b) including a first most proximal portion (40E1) of which a relative position with respect to the magneto resistive effect element (21) is defined, and provided in a non-contact manner with respect to the first magneto resistive effect element (21), and a first soft magnetic body (35) and a second soft magnetic body (36) juxtaposed in the first direction and extending in a direction away from the first surface (15A), and each of the first soft magnetic body (35) and the second soft magnetic body (36) is magnetically connected to the positioning soft magnetic body (40b).