Filter screen cleaning reminding method and device, washing machine and storage medium

The invention discloses a filter screen cleaning reminding method and device, a washing machine and a storage medium, and relates to the technical field of washing machines. The method comprises the steps that if the washing machine communicates with an application program for the first time, a water quality area is determined according to a user address and water quality map information obtained from the application program; if the water quality area is the preset water quality area, obtaining the entry number of a filter screen from a preset storage area, and determining a use frequency threshold according to the entry number and the water quality area; if the washing machine and the application program do not communicate for the first time, obtaining the number of times of use, and judging whether the number of times of use is greater than a number-of-use threshold; if yes, a prompt for cleaning the filter screen is displayed or a push instruction is sent to the application program, so that the application