Preheat the oven to 350 degrees F (175 degrees C).

Mix together pretzels, melted butter, and sugar in a medium bowl; press into the bottom of a 13x9-inch baking dish.

Bake crust in the preheated oven until lightly browned, about 10 minutes. Remove to cool completely.

Stir together cream cheese and confectioners' sugar in a large bowl. Fold in whipped topping until smooth. Spread over cooled crust. Cover evenly with cherry pie filling.