The invention discloses an exception detection method for game rewards and a computer-readable storage medium. The method includes the steps of recording reward acquisition data to obtain a reward database, wherein the reward acquisition data comprises an activity identifier, a reward identifier, a user account identifier, a user device identifier and a user device IP; acquiring dynamically configured condition data and a corresponding threshold value thereof, wherein the condition data comprises the activity identifier and/or the reward identifier; according to the condition data, obtaining corresponding result data in the reward database through matching; counting the number of user account identifiers corresponding to the same user device identifier or the same user device IP in the result data; if the number of the user account identifiers exceeds a corresponding threshold value, carrying out prewarning. The method can quickly achieve high-availability monitoring configuration according to the service demands, and an abnormal reward dispatching condition can be quickly located.