An object of the present invention is to lower the barrier to entry by lowering material costs and removing restrictions on equipment and space in latte art practice. For the conventional latte art practice as described above, necessary equipment and space to install it were needed, and this is to solve the problem of the material cost consumed every time. That is, in the latte art practice application, the present invention includes a steam feature body formed so that a user can hold it by hand, and a motion sensor provided inside the steam feature body to convert a user's actions into electrical signals, the steam A wireless transmitter provided to wirelessly transmit an electrical signal input from the inside of the feature body, a smart phone provided to output an action through wireless communication with the steam feature, and a user to apply a practice application to the smart phone by touch By composing an icon that can be executed and an execution screen window that is popped up by a touch of the smartphone icon to display an action, it lowers the material cost in latte art practice and removes the restrictions on equipment and space, thereby eliminating barriers to entry has the effect of lowering
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