A supporting apparatus for supporting insertion of a flexible insertion member is provided. In the supporting apparatus, an attention point acquisition unit specifies a first attention point specified by a shape of the insertion member. A first displacement acquisition unit acquires a first displacement, which is a positional change of the first attention point. A second displacement acquisition unit acquires a second displacement of a second attention point. A displacement information calculation unit compares the first displacement of the first attention point and the second displacement of the second attention point with each other and calculates displacement information. A determination unit determines state of the insertion member or the subject, based on the displacement information.
