The invention provides a method for testing transformer equipment without disassembling a lead, which comprises measurement for an oil-immersed transformer and an oil-immersed shunt reactor. The test of the oil-immersed transformer comprises the steps of (1) measuring insulation resistance, an absorption ratio and a polarization index of an oil-immersed transformer winding by adopting a shielding method; (2) testing a dielectric loss factor of the winding; (3) testing a capacitive sleeve and the capacitance; and (4) measuring leakage current of the winding. The test of the oil-immersed shunt reactor comprises the steps of (1) measuring insulation resistance, an absorption ratio and a polarization index of a winding; (2) testing the capacitance of a body; and (3) testing the insulation resistance and the capacitance of a sleeve. The method provided by the invention shortens the test time, reduces the workload of maintenance, decreases the risk factor, reduces the cost index of regular checking, and has wide application prospects.