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To investigate the salt-release performance of salt-storage aggregates, salt-storage aggregates were prepared using magnesium oxychloride cement as a carrier through the addition of chloride salts and sustained-release agents. The different types of salt-storage aggregates were compared and selected through compressive strength and immersion conductivity tests. In addition, the salt-release performance of salt-storage asphalt mixtures was investigated by immersion conductivity tests and simulated rain erosion tests. The results indicate that as a sustained-release agent, polyethylene glycol has a certain adverse effect on the compressive strength of salt-storage aggregates, whereas glycerol has an enhancing influence during 28 days of standard curing conditions. The salt-storage aggregates with sustainedrelease agents show a good sustained-release effect and a relatively stable conductivity growth. Compared with polyethylene glycol, glycerol attains a better sustained-release effect on salt-storage aggregates with CaCl2 as a snowmelting agent. Under short-term immersion conditions, the conductivity of salt-storage asphalt mixture specimens increases rapidly with prolonged immersion. Under long-term immersion conditions, the conductivity changes under different replacement rates show two stages, namely, the early stage featuring a rapid increase and the later stage showing a gradual trend. The salt-dissolved regularity of salt-storage asphalt mixture conforms to the logarithmic model. After 5 years of equivalent rainwater erosion, the salt-storage asphalt mixture can still release salt. The study provides a good reference for the production and application of salt-storage aggregate in road maintenance. [ABSTRACT FROM AUTHOR]