The invention discloses an 
open water power set remote fault diagnosis platform and aims to establish a distributed diagnosis, control and 
data management configuration among power plants, 
branch offices and a group, improve remote fault diagnosis efficiency of a water power set and reduce cost. A 
system comprises the 
open water power set remote fault diagnosis platform. The 
open water power set remote fault diagnosis platform is characterized by comprising a group remote end, multiple 
branch office centralized control ends, multiple power 
plant terminals and application clients which are connected through the network, wherein the 
branch office centralized control ends are respectively connected with the multiple power 
plant terminals, operation state 
information data of the water power set is acquired by the power 
plant terminals and is transmitted to the corresponding office branch networks, and relevant 
processing and storage work is carried out through 
branch office data centers; the water power set operation data acquired by the power plant terminals is acquired by the group remote end, fault diagnosis of the water power set is carried out according to the acquired water power set operation data, and the water power set operation state information and the fault diagnosis result information of the power plant terminals are provided through a 
WEB server for the application clients of the network.