A network quality measurement method includes obtaining feature parameter of a to-be-measured data packet set, where the to-be-measured data packet set is in a packet flow and is based on an encrypted transmission protocol, the to-be-measured data packet set includes at least two to-be-measured data packets, and the feature parameter are parameter read from headers of the to-be-measured data packets based on the encrypted transmission protocol, determining a data transmission mode of the to-be-measured data packet set based on the feature parameter of the to-be-measured data packet set, determining, based on the data transmission mode, a measurement index of network quality measurement, and performing, based on the measurement index, the network quality measurement on the to-be-measured data packets corresponding to the feature parameter.