The invention discloses an intelligent weighing sensor. The intelligent weighing sensor comprises an installation seat, a first precision weighing sensor, an elastic bearing part, a second precision weighing sensor and a supporting leg. The elastic bearing part comprises an upper bearing part body, a spring and a lower bearing part body, the top end of the spring is connected to the upper bearing part body in an abutting mode, and the bottom end of the spring is connected to the lower bearing part body in an abutting mode. The installation seat, the first precision weighing sensor, the upper bearing part body, the spring, the lower bearing part body, the second precision weighing sensor and the supporting leg are sequentially arranged in a press connecting mode. The upper bearing part body is provided with a force guiding press connecting part, and the supporting leg is provided with a force guiding bearing part. In a free state, the force press connecting part is higher than the force guiding bearing part. The upper bearing part body compresses the spring when bearing pressure and being stressed, and then the force guiding press connecting part is driven to move downwards; when the upper bearing part body bears pressure and is stressed to a preset degree, the force guiding press connecting part moves downwards to the force guiding bearing part in a press connecting mode. The intelligent weighing sensor has a double-stage consecutive range, and different precision values are achieved in different stages of the range.