The invention relates to a 
vacuum pump performance testing 
system and method based on the cloud technology. An air inlet 
pipe is connected with an air inlet of a testing cover, and a flow meter is arranged on the air inlet 
pipe. A vacuum meter is arranged on the testing cover, an air outlet of the testing cover is connected with a reducing connector, the reducing connector is connected with one end of a corrugated 
pipe, the other end of the corrugated pipe is connected with an air inlet of a to-be-tested 
vacuum pump, an air outlet of the to-be-tested 
vacuum pump is connected with an 
exhaust pipe, and an exhaust silencer is arranged at the 
tail end of the 
exhaust pipe. A data collection card is in communication connection with the flow meter and the vacuum meter and is used for collecting 
signal data of the flow meter and the vacuum meter. A 
cloud server is in communication connection with the data collection card and is used for receiving the 
signal data sent by the data collection card and storing and 
processing the 
signal data. Through the testing 
system, testing flexibility and testing efficiency of the vacuum pump are improved, and cost is reduced; and meanwhile, 
data cloud storage and 
cloud processing can be achieved, good transportability and universality are achieved, and the vacuum pump performance testing 
system and method are suitable for testing requirements of different kinds of vacuum pumps.