The invention provides a water vending machine with a remote alarm function. The water vending machine comprises a water vending machine body and a data transmission module arranged on the water vending machine body, wherein a water tank for storing pure water is arranged in the water vending machine body, the water vending machine body is further provided with a switch control module, a water shortage alarm module, a water supply failure alarm module and a power failure alarm module which are respectively connected with the data transmission module, the switch control module is connected with the power switch of the water vending machine, the water shortage alarm module is connected with a water level meter in the water tank, the water supply failure alarm module is connected with the water pressure gauge of a water inlet pipe, the power failure alarm module is connected with a power supply, and a remote-end mobile phone terminal is provided with a data receiving module. The water vending machine has the advantages that the parameters of the various parts of the water vending machine are transmitted to the remote-end mobile phone terminal through a 4G network, the mobile phone terminal transmits instructions back to the water vending machine, and remote monitoring is achieved.