Abstract: An improved tree ladder, comprising a plurality of modular ladder sections of unitary molded construction adapted for mounting to a tree. Each of the ladder sections includes a first step and a second step with ridged step surfaces and extending from a central frame. The frame includes a pair of adjacent strap posts positioned approximately midway between the first and second steps. Upper and lower standoff members having cleats extend from the central frame and are offset below their respective steps. The first and second steps may each include a holding slot adapted to receive a human hand. The standoff members include ribs and recessed portions which allow the ladder sections to be placed in a stacked configuration which prevents lateral movement between the ladder sections.