The invention relates to the technical field of household appliances, in particular to a control method of a detergent release device and a washing machine. The control method comprises the steps of detecting whether or not a user washes clothes, if yes, executing the next step, and if not, popping out a detergent box and a detergent storage drawer not automatically; judging whether a detergent needs to be supplemented into the detergent box, if yes, controlling the detergent box and/or the detergent storage drawer to pop out automatically, if not, controlling the detergent box to automatically release the detergent, and performing the washing procedure. When the detergent inside the detergent box is sufficient, direct washing is performed, when the detergent is not sufficient, the detergent box and/or the detergent storage drawer are/is popped out automatically, the user can conveniently add the detergent, the working process is more efficient, control is more intelligent, the operation that the user manually pulls the storage drawer and/or the detergent box is omitted, and more time and labor are saved for operation of the washing machine.