The utility model discloses a tool system for a hard wing sail land-based rotation test. The device comprises an auxiliary tool (11) fixed on a slewing bearing (19) of the hard wing sail land base, two sets of first connecting devices (17) which are reversely and symmetrically arranged on two sides of the auxiliary tool (11), and two sets of second connecting devices (18) which are respectively connected with the first connecting devices (17), and the two sets of supporting devices (6) are used for supporting the second connecting devices (18) respectively. According to the utility model, stable rising and falling under a rated load and self-locking without reverse rotation after hydraulic driving is stopped are satisfied; the load borne by the hard wing sail measuring equipment is effectively converted from a radial load into an axial load, and a rotation test of a hard wing sail project is converted into a lifting test of the balancing weight, so that a constructor can observe the test more intuitively.