The invention provides a method for correcting an overburden pressure physical property of a shale reservoir. The method belongs to the field of petroleum and natural gas exploration. The method is based on a reservoir rock core overburden pressure test. Through analyzing a relationship and a role between a physical property change after an overburden pressure is applied on the rock core and an overburden pressure change, a reservoir physical property overburden pressure correction model is established, namely a reservoir porosity overburden pressure correction model and a reservoir permeability overburden pressure correction moduel. The method comprises the following steps of (1) performing a rock core overburden pressure testing, and obtaining a testing result; (2) establishing a rock core physical property overburden pressure correction model, namely analyzing a change relationship between a rock core overburden pressure physical property and the overburden pressure according to the testing result of the step (1), and establishing a relationship model between the overburden pressure physical property and the overburden pressure in each rock core sample; and (3) establishing a reservoir physical property overburden pressure correction module, namely analyzing differences among the rock core physical property overburden pressure correction models which are established in the step (2), and analyzing a change rule between the difference and a routine physical property on the ground of the rock core.