1. The relevant provisions of the Labor Contract Law "If an employer provides special training fees for its employees and provides them with professional and technical training, it may conclude an agreement with the employees to stipulate the service period. 2. If the laborer violates the service period agreement, he shall pay liquidated damages to the employer in accordance with the agreement. 3. The amount of liquidated damages shall not exceed the training expenses provided by the employer. 4. The liquidated damages that the employer requires the laborer to pay shall not exceed the training expenses that should be shared for the unfinished part of the service period. 5. Training expenses include training expenses with payment vouchers, travel expenses during training and other direct expenses incurred by workers due to training, so if the training agreement is valid and does not violate the labor law. You have to bear the liability for breach of contract, but the liquidated damages should be in accordance with the provisions of the labor law, not necessarily the amount agreed in the contract.