Needless to say, failure of the policy holder to sign the insurance policy is particularly detrimental to the insurance company. Secondly, has the insurance contract in this case taken effect? According to the provisions of the Contract Law, a general contract takes effect from the time of its establishment. At this point, if the insurer has no additional conditions, the insurance contract has come into effect. However, the insurance contract is a special contract, and the insurer usually attaches effective conditions to the terms. These effective conditions include: it will take effect after the policyholder pays the insurance premium, it will take effect after the insurance policy is issued, or it will take effect after a specific period of time. However, it is generally considered that once the insurance policy is issued by the insurer, the insurance contract has come into effect. In addition, the policyholder in this case has already paid the insurance premium and the insured accident occurred three months after the insurance policy was issued. Therefore, the author believes that the insurance contract has come into effect. If an insured accident occurs after the insurance contract comes into effect, the insurance company shall bear the liability for compensation. The failure of the policyholder to sign the insurance policy cannot be a reason for the insurance company to refuse compensation.