The invention provides a treatment method for a domestic waste yard. The method is carried out according to the following steps that a, a surface layer of the domestic waste yard is leveled; b, starting from the periphery of the surface layer facing the opposite direction of a water outlet port, a core drill with an air compressor is used for drilling vertical holes from top to bottom, water in domestic waste around the drilled holes is squeezed out and blown out of gaps by gas coming from the air compressor while drilling, when the core drill reaches the bottom of the domestic waste yard, cement mortar is added to the gas coming from the air compressor, with filling of the cement mortar, the core drill is gradually lifted to the surface layer of the domestic waste yard, hole drilling and grouting are finished, hole intervals are 4-8 meters and the holes are arranged gradually in the water outlet port direction; c, after the cement mortar for hole drilling and grouting in the step b solidifies, hole drilling and grouting are conducted on centers among any adjacent four holes; d, after the cement mortar for hole drilling and grouting in the step c solidifies, hole drilling and grouting are conducted on the edge of the domestic waste yard.