If you want to get married without a marriage certificate, you may need to submit the following documents: 1. Divorce certificate: If the original spouse has passed away, you need to submit a divorce certificate. If the original spouse was still alive, they would need to go through the divorce procedures first before going through the marriage procedures. 2. Residence booklet and ID card: Marriage in mainland China requires the submission of residence booklet and ID card. If the original spouse has lived together for more than 30 years, then other relevant certificates such as birth certificates, only child certificates, etc. may be required. 3. Other documents: According to the specific situation, other relevant documents such as wedding planning certificate, relationship breakdown certificate, etc. may be required. It should be noted that different regions may have different regulations, so you need to consult the relevant local departments or lawyers for specific situations.