A sensor unit, a biological information detection device, an electronic apparatus, a biological information detection method, and the like, capable of acquiring highly accurate pulse wave information on the basis of a plurality of signals having different characteristics. The sensor unit includes a first light emitting portion that emits light toward a subject, a second light emitting portion that emits light toward the subject, and a light receiving portion that receives light from the subject, in which, in a case where a height of a contact position or a contact region with the subject in a position or a region corresponding to the first light emitting portion is indicated by H1, and a height of a contact position or a contact region with the subject in a position or a region corresponding to the second light emitting portion is indicated by H2, a relationship of H1>H2 is satisfied.