1. A user activity recognition apparatus, comprising: a collector configured to collect a frequency-domain signal for a user activity and to generate learning data based on the frequency-domain signal; an activity feature extracting model that is learned based on the learning data from the collector; an extractor configured to extract a user activity feature from the frequency-domain signal based on the activity feature extracting mode; a classifier configured to analyze the user activity feature to classify a user activity pattern based on an activity pattern classifying model and configured to transmit the classified user activity pattern to an application device; a first sensor configured to detect a first signal to analyze a user activity; and a second sensor configured to detect a second signal to correct the first signal; wherein the learning data corresponds to user activity patterns related to user containment of a mobile terminal.