A waste cooking oil separating and oil recovering device is disclosed. A partition plate and a guide plate are arranged in the box so as to divide the box into an oil collecting chamber and a dreg collecting chamber; the dreg collecting chamber is arranged on one side of the partition plate, the oil collecting chamber is arranged on the other side of the partition plate, and the portion between the partition plate and the box is the oil collecting chamber. An oil absorbing float is arranged in the oil collecting chamber, and the oil pipe in the oil absorbing float is connected to the oil pipe in the guide plate through a telescoping pipe. The upper part of the dreg collecting chamber is provided with a water outlet which is communicated with a water discharge pipe. The box is covered by a sealing cover, and a waste cooking oil pipe is fixed on the sealing cover. The provided waste cooking oil separating and oil recovering device has the advantages of concise structure, good industrialization prospect, high commercial value, and convenient manufacturing and application. The collected waste cooking oil does not contain water, the waste cooking oil is separated and sorted, and the kitchen garbage is recycled. The pollutant discharge is reduced, the odor in kitchen is eliminated, the environment is protected, and thus the provided device is the first choice for kitchen garbage recovery.