User activity recognition method and device

The invention discloses a user activity recognition method and a user activity recognition device. The user activity recognition method is used for an intelligent terminal with a sensor, and includes: obtaining first data of the sensor; calculating the first data according to a first algorithm so as to obtain a first activity recognition result; using an amending model built according to training data to amend the first activity recognition result, and obtaining a second activity recognition result, wherein the training data includes at least one group of user relevance information and history data, the history data comprises a user activity recognition result and a user activity of a user label corresponding to the user activity recognition result, and the user relevance information at least includes one item of obtaining time, an obtaining position, user personal information and application use state information of sensor data used to confirm the user activity recognition result; confirming the second activity recognition result as the user activity. The user activity recognition method improves recognition accuracy for the user activity.