1. Two batches of F1 shrimp larvae from the grass shrimp species along the coastal waters of Taiwan and four batches of F3 shrimp larvae from the grass shrimp species of Madagascar were produced. The environmental stress tests were 0℃ seawater, 26℃ 10ppt seawater and 26 Three batches of F3 shrimp larvae from Madagascar were screened with a better performance at 0ppt fresh water for intermediate breeding and grow-out. 2. In 2019, the stocking density of Taiwanese population F1 was 35 tails/m 2 , the initial average weight was 0.19×10-1 g and 0.12×10-1 g, and the average weight after 14 months of breeding was 83.33±21.4 g and 61.41±11.8 g, the maximum body weight is 136.54 g, and it is being screened as the seed shrimp for F2.