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Ground surface microstructure damage occasional occurs with the large depth cutting occasion. As a result ofmicrofinishing and finishing cut primarily proceed in small depth of cut conditions, people occasionally neglect the influenceand imperil of the ground surface micro-disturbance brings to partial performance. This article researches partial groundsurface microstructure damage styles and mechanism of production and the influence of the partial performance based on theexperiments and the analyses. Then this article comes up with the control measures of the partial ground surfacemicrostructure damage in small depth of cut conditions.