The invention provides a backlog quantity monitoring method and device of a message queue, a readable medium and electronic equipment. The backlog quantity monitoring method includes: recording enqueue logs of the message queue; recording dequeue logs of the message queue; and calculating backlog quantity of the message queue according to the enqueue logs and the dequeue logs. According to the technical solution of the invention, the backlog quantity of the message queue can be monitored and analyzed through a general log manner, repeated development is reduced, and then development and maintenance costs can be reduced.