PURPOSE: To provide a fiber-optic tactile sensor which can detect a force as vectors of intensity and direction and, at the same time, can be easily reduced in size.

CONSTITUTION: A fiber-optic tactile sensor is constituted by fixing a sensor head S to the light emitting/receiving end face 89 of an optical fiber group 8 composed of one light emitting optical fiber 6 and numerous light receiving optical fibers 7, 7,... and the head S is composed of a guide section 5 having a through hole for guiding the end face 89 of the optical fiber group 8 to a prescribed position, a transparent substrate 4 to which the end face 89 is fixed, a spacer 3 for forming a space 31, a flexible reflecting-film 2 which reflects the light emitted from the fiber 6 and, at the same time, bends when a load is applied to the film 2, and a projection 1 which is constituted as a sensitive section and bends the film 2 when an external force acts on the projection 1. The space 31, in addition, is provided so that the reflecting film 2 can bend.