First, we must first understand what trademark renewal is. A trademark is not permanent, but it has "life". When its "life" is about to end, the registrant must "renew his life" in advance, otherwise it will be invalid, cancelled, and may not appear again or be taken away by others. Therefore, the registrant must apply to the Trademark Office one year in advance before the trademark expires, with a grace period of at most half a year. Once the grace period is missed, the registrant will also miss the exclusive right to use the trademark. If the trademark is cancelled, the applicant must start to register another trademark again, which is equivalent to starting from scratch, which is extremely unfavorable to the development of individual businesses or enterprises and even leads to economic crisis. Second, if the applicant decides to apply for trademark renewal, he must go to the trademark registration hall in advance to receive the application for trademark renewal, and fill in the application for trademark renewal correctly according to the requirements of the specification; Three, prepare the first registered trademark "trademark registration certificate" pattern, copy and original should be prepared. The original shall be kept for future reference, and the copy shall be submitted in quintuplicate; 4. Fill in the application for trademark renewal correctly according to the category requirements. Because the classification of goods has different definitions in different periods, the classification of goods at the time of original registration may not be applicable to the present, so it must be clearly identified before filling in, so as to avoid the wrong classification of goods and the rejection of the application for renewal. If the registered trademark of a company or enterprise needs to be renewed, it must have a grace period stipulated by law and pay legal fees in accordance with relevant laws. What needs to be clear is that if other personnel handle or entrust the handling, they also need to pay a certain percentage of service fees, and the specific situation will be determined according to the actual situation.