Abstract: A glueless shoe sole assembly includes an outsole and a midsole. The outsole includes an accommodation cavity, an endless internal mounting groove extending around the accommodation cavity and an endless external mounting groove extending around the outer periphery thereof the outsole for the mounting and fixation of a contact part of an upper. The midsole includes a bottom wall detachably accommodated in the accommodation cavity of the outsole and an endless mounting portion extending around the bottom wall and detachably press-fitted into the endless internal mounting groove of the outsole to secure the midsole to the outsole tightly.