1, cutting type. The earliest method is to directly tie oyster shells to bamboo slices split in half and insert them on the beach, so that oyster seedlings can naturally attach, saving cost and manpower, but it is rarely used at present because of its slow growth speed and low efficiency.

2, flat hanging type. Bamboo is used as the base column, two rows of cross bars are added, and oyster strings are hung between the cross bars in parallel, which is suitable for shallow intertidal beaches, about one meter.

3. Hanging type. Similarly, erect the base column first, then erect a long square on it with bamboo poles or plastic pipes, and hang the oyster string vertically, perpendicular to the water flow, so as to increase the feeding opportunities. The depth of seawater in the culture area is deeper than that in the flat hanging type, mostly in the inner bay and tidal ditch.

4. Floating shed type. Directly use styrofoam as a floating tool, connect it horizontally with thick ropes in the middle, and then hang several strings of oysters along the longitudinal direction of the thick ropes, which is also called rope culture. The suspension depth is relatively deep, up to three stories high. It's more vulnerable to flatworms.