A cart basket locking assembly for securing valuables in a shopping cart includes a cart, such as for using in a supermarket. A basket is coupled to and is positioned the cart. The basket, which is positioned proximate to a first end of the cart, has a top that is open. A cover is hingedly coupled to the basket. The cover is selectively and lockably couplable to the cart to close the top of the basket. The cover is positioned to selectively couple to the cart to close the top of the basket. The cover also is positioned to be locked to secure at least one article, such as a purse, within the basket.