According to an embodiment of the present invention, there is provided a posture guide provision method performed by an apparatus for providing posture guide using a preset machine learning model. The provision method comprises acquiring an image for a user's posture, displaying a tutoring image in a first region of a display and the acquired image in a second region of the display, extracting a feature point from the acquired image, acquiring user posture information by generating a user posture line corresponding the user's posture based on the extracted feature point, generating posture guide information for guiding the user's posture based on the tutoring image and the user posture information, and combining the acquired image and the posture guide information with each other and displaying the combination in the second region of the display.