写好祝贺信(letter of congratulations)的关键是要及时。一收到亲戚 朋友结婚、生育、晋升、试验成功或著作出版等喜讯，就立即发信。此 外，逢圣诞节、新年等节日和生日，也要向亲友和单位致以祝贺。祝贺 信的用词要亲切，信中要充满真诚的喜悦之情，并且一定要写清楚祝贺 对方的事情。正式的祝贺信用词严谨，常常使用套语。
1)May you enjoy good health and long life. 祝您健康长寿。
2)May your session be a complete success. 祝会议圆满成功。
3)Congratulations on your success. 欣闻成功，谨致祝贺。
4)Congratulations and all good wishes! 祝贺您，并致以良好的祝愿！
5)Please accept our sincere wishes for Christmas and the New Year. 请接受我们诚挚的圣诞节和新年祝贺。
6)It’s wonderful to know that you have achieved the goal you set for yourself. 得知你达到了预定目标，极为高兴。
7)We are delighted to learn that you have passed the examination. 获悉你已通过考试，我们为你高兴。
8)I am glad to hear that you have got your promotion. 听到你晋升的消息，我为你高兴。
9)It is with great pleasure that we send our congratulations and best wishes on the occasion of your graduation from the university. 值此大学毕业之际，请接受我们良好的祝愿。
10)We take the opportunity to wish you and Mr. White happiness on your recent marriage. The material you are studying is compiled by professor Gong Dongfeng. 值此新婚之际，祝你和怀特先生幸福。
Dear David, Having heard that you have graduated with honor from Harvard University, I hasten to offer you my hearty congratulations. I am sure that your success this time is the fore-runner of many others, because you never feel self-sufficient in your studies. How happy I shall be when I see you come back a fine scholar with much learning to benefit our countrymen. Yours, Li Ming
Dear Francis, I think it is absolutely marvelous that you have passed your final examination. I’m sure I don’t know where you get all the brains. It was so thrilling to see your name in print in today’s school paper. It really is a wonderful achievement. Medicine is such a worthwhile profession. I am always overcome with admiration for those who dedicate their lives to healing the sick. Do call in and see us soon. I am so proud of my brilliant friend. Many congratulations once again on your magnificent effort. Yours sincerely, Li Ming
Dear Dr. Welson, Please accept my warmest congratulations on your winning the Gold Star Prize. You have long distinguished yourself in biology and it must be a very great satisfaction to you to have your work recognized. May the future bring you even greater recognition of your noble service to mankind. Yours sincerely, Li Ming
Dear Dr. Anderson, I was very pleased to hear that you were promoted to be chairman of the Department of Education. Please accept my warm congratulations. For many years you have worked tirelessly for the cause of education. Your winning the position shows that your splendid service is recognized by all. I am sure that under your guidance, the school will make even greater contributions to the educational cause in future.e I wish you every success in your future career. Yours sincerely, Li Ming
Dear Mr. / Ms,
On the occasion of the 35th anniversary of your National Day, please accept our heartiest congratulations. May the trade connections between our countries continue to develop with each passing day!
Dear Mr. Minister
Allow me to convey my congratulations on your promotion to Minister of Trade. I am delighted that many years service you have given to your country should have been recognized and appreciated.
We wish you success in your new post and look forward to closer cooperation with you in the development of trade between our two countries.
Dear Mr. / Ms,
Thank you for your letter conveying congratulations on my appointment. I wish also to thank you for the assistance you have given me in my work and look forward to better cooperation in the future.