A message sending method includes the following steps: receiving the message and the parameters set by a user through a client; converting the message to be in the format of stored message data in a database; if the user sets a message receiving time in the parameters, storing the converted message in a cache table in the database; if the current time is consistent with the message receiving timeset by the user, transferring the message in the cache table to a sending table of the database; if the user sets no message receiving time, directly storing the converted message to the sending table; reading the message in the sending table, sending the message to the corresponding user according to the message receiving address set by the user, and generating a sending tag; judging whether themessage is sent successfully according to the sending tag; if the message is successfully sent, backing up the message and then deleting the message in the sending table; judging whether the message exists in the sending table so as to confirm whether to end the process.