This paper deals with the origin of the Linying stoneforest by the sedimentary study of the terra rossa around the buried karren in two sections of Carboniferous and Permian formations in the area of Linying stoneforest, Dahu township. Yongan Municipality, Fujian Province. The grain size, mineral and chemical compositions of the terra rossa, and micro texture of the quartz sand surface demonstrated that the terra rossa was the weathered residual products of limestones. So the stoneforest in the studied area was developed from the limestones by weathering and dissolution, first as the buried karren, and then through denudation and revealing of the ground deposits to finally become the karst stoneforest consisting of rock kege, rock towers in different sizes and forms. All these must be formed under the conditions of a stable geographical environment and an unitary exogenic hydraulic action in the long period. Howerver, where the river flowed through at that time, river transportation and deposition strongly effected on the formation of the buried karren and stoneforest.