The invention relates to a bean lack detection method and device for beverage equipment, the beverage equipment and a storage medium. In response to a beverage making instruction, a correlation
signal is detected, the state of a bean grinder is detected at the same time, in any bean
grinding period, if the correlation
signal is not detected and it is determined that the bean grinder does not have an empty
grinding state, a
powder pressing link after
grinding is executed, and the thickness of pressed
powder is obtained; under the condition that the thickness of the pressed
powder is smaller than the thickness threshold value, a first bean lack prompt
signal is sent out. Whether beans exist in a bean storage bin or not is judged by detecting correlation signals at the beginning of bean grinding or in the bean
grinding process, so that the situation that no beans exist in the bean storage bin can be found in time, the number of rotation turns of the bean grinder is dynamically monitored in the bean grinding stage, and bean lack detection is achieved in combination with a dual
verification mechanism for monitoring the thickness of pressed powder in the powder pressing stage; the problem of misjudgment caused by detection only through correlation signals can be avoided, and the accuracy and robustness of bean lack detection are remarkably improved.