The South Yue kingdom palace is a large earthen relic site,designated as a national key protection cultural relic by the State Council in November 1996.Due to its time excavation time and the limited site space,there has been various degrees of weathering,chalking,cracking,partial collapse,and other serious deterioration.After research and testing,several commonly ysed consolidants for earth relic sites,including organic silicon modified acrylic,PS materials,organosilicon modified silicate,silicic acid esters and inorganicorganic composite materials,have used to consolidate test samples from the earthen archaeological site of the South Yue kingdom Palace.Performance of these consolidants was compared and propertied of the test samples before and after consolidation were compared.The results showed that clay samples treated with silicic acid esters and inorganicorganic composite materials had good anti-moisture properties and improved resistance to salt and pressure, and that the treatment did not change appearance and air permeability of the samples.PS material reinforced soil had good air permeability and permeability,but had poor antimoisture properties and low pressure resistance.These samples showed a whiter appearance.Organosilicon modified acrylic and organosilicon modified silicate reinforced samples had moderate pressure resistance but poor permeability,salt resistance and antimoisture properties.