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(一)选址。选择面南背北,避风向阳处,要求排灌方便,阳光充足。池塘宽3米,深1～1.2米,长度可根据地大小而定。池底用水泥灌浆,以不漏水为原则,池对角设进、排水口,池底要北高南低,以利于排灌。池塘周围用富腐植质的疏松沙质土壤,以便于水蛭产卵。池塘中间建高于水面0.2米的平台一个,保持湿润,池底放些石块和树枝供水蛭栖息。(二)水质。水质是水蛭自下而上的主要条件。人工养殖的水蛭密度较大,在养殖过程中需要经常换水,并防止化肥、农药的污染,尤其是7～8月的高温季节,更要保证进出水口畅通,水质清新并有一定的溶氧量。
(A) site selection. Choose south face north, shelter from the sun, requiring irrigation and drainage convenience, sunny. The pond is 3 meters wide and 1 to 1.2 meters deep, depending on the size of the pond. Bottom of the cement grouting, in order to not leaking for the principle of the pool located diagonal, drainage, the bottom of the pool to the south high, in order to facilitate irrigation and drainage. Pond around the rich humus rich loose sandy soil, in order to leech spawning. The middle of the pond to build a platform above the water level of 0.2 meters, keep moist, put some rocks at the bottom of the pond and branch leeches perched. (B) water quality. Water quality is the main condition of leeches from bottom to top. Man-made leeches are more densified. They need frequent water changes during the breeding process and prevent the pollution of chemical fertilizers and pesticides. Especially in the hot season from July to August, moreover, the water inlet and outlet should be kept clear, fresh water and some dissolved oxygen the amount.