When the broodstock of adult abalones are fully mature to induce spontaneously spawning under circulation flowing water are the same easy as induced by UV-treated seawater for some timeinterval. The presence of sperm in the spawning container triggered females to spawn. Partial spawning is observed in some specimens, which are used for these spawning trial. Ripe male and female abalone at a small ratio of 1 male:30 female or 10 male:1 female under circulation flowing water are induced to spontaneously spawning easily without UV-treated seawater. The substrates for lavae and benthic diatoms attaching are placed in outdoor tanks that the broad flat baskets are dangled under floating frame the angle at vertical would be fix easily.When abalone juvenile need more food the broad flat baskets are floated horizon for attaching and growing more benthic diatoms. This propagation and culture experiments have been conducted for labor-saving operation process that the mass-production abalone seeds wounld be easy.