A method of producing a composite which comprises a support and a plurality of structures fixed to at least one surface of the support, wherein the structure comprises a shaft member made from a flexible material extending from a proximal end fixed to the support, and an adhesive part arranged at a distal end of the shaft member, the method comprising: a step A1 of fixing proximal ends of fibers made from a flexible material to at least one surface of a temporary support at a predetermined interval from each other to obtain a temporary support with fibers; a step A2 of immersing at least the fibers in a composition containing a pressure-sensitive adhesive; a step A3 of taking out the temporary support with fibers from the composition, and obtaining a structure having a shaft member formed by bonding a plurality of the fibers by the surface tension of the composition, and an adhesive part which is formed on a proximal end side corresponding to the interval and which is composed of a film-like pressure-sensitive adhesive held or surrounded by the fibers, wherein a film means a shape having a maximum diameter (width) of 10 μm to 5 mm and having a shape such as a circular shape, a semicircular shape, a sector shape, a polygonal shape, a spherical shape, a flat spherical shape, a long spherical shape, a cylindrical shape, or a triangular columnar shape; and a step A4 of separating the structure from the temporary support, and fixing the shaft member to the support to obtain the composite, wherein the flexible material is a material which is elastically deformable in relation to a stress required for an initial adhesion between the adhesive part and an adherend. a support and a plurality of structures fixed to at least one surface of the support, wherein the structure comprises a shaft member made from a flexible material extending from a proximal end fixed to the support, and an adhesive part arranged at a distal end of the shaft member, the method comprising: a step A1 of fixing proximal ends of fibers made from a flexible material to at least one surface of a temporary support at a predetermined interval from each other to obtain a temporary support with fibers; a step A2 of immersing at least the fibers in a composition containing a pressure-sensitive adhesive; a step A3 of taking out the temporary support with fibers from the composition, and obtaining a structure having a shaft member formed by bonding a plurality of the fibers by the surface tension of the composition, and an adhesive part which is formed on a proximal end side corresponding to the interval and which is composed of a film-like pressure-sensitive adhesive held or surrounded by the fibers, wherein a film means a shape having a maximum diameter (width) of 10 μm to 5 mm and having a shape such as a circular shape, a semicircular shape, a sector shape, a polygonal shape, a spherical shape, a flat spherical shape, a long spherical shape, a cylindrical shape, or a triangular columnar shape; and a step A4 of separating the structure from the temporary support, and fixing the shaft member to the support to obtain the composite, wherein the flexible material is a material which is elastically deformable in relation to a stress required for an initial adhesion between the adhesive part and an adherend. a step A1 of fixing proximal ends of fibers made from a flexible material to at least one surface of a temporary support at a predetermined interval from each other to obtain a temporary support with fibers; a step A2 of immersing at least the fibers in a composition containing a pressure-sensitive adhesive; a step A3 of taking out the temporary support with fibers from the composition, and obtaining a structure having a shaft member formed by bonding a plurality of the fibers by the surface tension of the composition, and an adhesive part which is formed on a proximal end side corresponding to the interval and which is composed of a film-like pressure-sensitive adhesive held or surrounded by the fibers, wherein a film means a shape having a maximum diameter (width) of 10 μm to 5 mm and having a shape such as a circular shape, a semicircular shape, a sector shape, a polygonal shape, a spherical shape, a flat spherical shape, a long spherical shape, a cylindrical shape, or a triangular columnar shape; and a step A4 of separating the structure from the temporary support, and fixing the shaft member to the support to obtain the composite, wherein the flexible material is a material which is elastically deformable in relation to a stress required for an initial adhesion between the adhesive part and an adherend.