Mobile phone case

The present invention relates to a mobile phone case which inclinedly supports a mobile phone while serving as an auxiliary case for protecting the mobile phone from an external impact. The mobile phone case comprises: a support provided in a band shape along an inner direction from one surface of a case part constituting the mobile phone case, the support being separated from the case part while defining a portion of the case part and being provided as a separate part with respect to the case part; and a support-coupling part into which the support is inserted and coupled, the support-coupling part being installed on a part of a central portion of the case part. When the support is withdrawn from a state in which the support is uprightly inserted and coupled in the same shape as that of one surface of the case part, and is then inserted and coupled to the support-coupling part after being turned upside-down, the support may support the case part so as to prevent the case part from falling backward.