This paper introduces the sea trial of collaborative networking of “Sea Ray” wave glider in the central and eastern South China Sea,including test object,test sea area,test procedures and test data analysis. This test has a maximum range of 3 069.3km and continuous navigation time of 94 days. Under sea state level 3,the vehicle could keep a speed more than 1 knots. And the radius accuracy of site-specific location is less than 150 meters. The wave glider has been proved to be able to survive in serious conditions like typhoons through numerous tests. The formation sailing and site-specific holding tests of multiple wave gliders were carried out,and performance comparison tests have been conducted with wave gliders from relevant domestic institutes. This sea trial has laid a foundation for design finalization and demonstration application of wave gliders.