The invention provides an in situ long-acting repairing material for lead and cadmium combined polluted soil. The in situ long-acting repairing material comprises three materials for remediating leadand cadmium combined pollution; a first material is composed of a substrate for absorbing lead and cadmium; a second material is made from particles capable of coating the substrate for absorbing leadand cadmium with a short-term degradable film; a third material is made from particles capable of coating the substrate for absorbing lead and cadmium with a long-term degradable film. After the in situ long-acting repairing material for lead and cadmium combined polluted soil provided by the invention is used, the material which is not coated with the film can take effect immediately and the valid period is 3-6 months; the material coated with a polyester film starts to degrade after entering into soil for 3-6 months and then the material starts to take effect; the material coated and then covered with the polyester film starts to degrade after entering into soil for 12-18 months and then the material starts to take effect; a long-acting effect of pollution control materials is generallyrealized.