The present invention relates to a program analysis device and method, wherein the program analysis device may comprise: a selection unit for selecting one of top-down processing or bottom-up processing for at least one analysis equation among a plurality of analysis equations; a first learning unit which, when the selection unit selects the top-down processing, performs top-down processing for the at least one analysis equation on the basis of a first learning algorithm in response to the selection, and thereby acquires at least one first learned analysis equation; and a second learning unit which, when the selection unit selects the bottom-up processing, performs bottom-up processing for the at least one analysis equation on the basis of a second learning algorithm in response to the selection, and thereby acquires at least one second learned analysis equation.