The invention discloses an embedded low-voltage circuit breaker facilitating the installation, and the circuit breaker comprises a housing. The top and bottom of the inner wall of the housing are respectively fixedly connected with a sliding rail, and the surfaces of the sliding rails are slidingly connected with sliding blocks, wherein the two sliding blocks are fixedly connected through a movingplate, and the midpoint of the right side of the moving plate is fixedly connected with a circuit breaker main body. The setting of the sliding rails, the sliding blocks, the moving plate, a groove block, a fixed block, a first rotating shaft, a rotating rod, a second rotating shaft, a first spring fixing board, a limiting block, a limiting telescoping rod, a limiting rod, a damping telescoping rod, a second spring fixing board, a damping spring, an antiskid soft pad, an adjustment nut, an adjustment bolt, a sliding rod, a moving block, a limiting baffle plate, a limiting plate and a fixing rod enables an embedded circuit breaker to be convenient to install, alleviates the workload of a worker, prevents accidents in the installation process from causing damages to the circuit breaker, avoids the unnecessary economic loss, and brings great convenience to a user.