[Technical Problem] It is an object to provide a sensor chip that is used in a specimen material detection device and a specimen material detection device using a sensor chip, with which a solution can be prevented from remaining, an irregularity can be prevented from occurring in a concentration, and a fluctuation of a signal can be prevented from occurring during a detection, and as a result it is possible to carry out an inspection in an accurate manner.;[Solution of Problem] A specimen material detection device is configured in such a manner that the relationship between the maximum width (a) of an inflow outflow hole and the width (b) of a flow passage is a b, and an angle θ that is formed between a wall surface of the flow passage and the tangent line of the inflow outflow hole at a contact point of the inflow outflow hole and the flow passage is in the range of 90° ≤ θ ≤ 135°.
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