衆所周知，邀請信是爲了增進友誼，發展業務，邀請客人蔘加慶典、會議及各種活動的'信函。邀請信分爲兩種：一種屬於個人信函，例如邀請某人共進晚餐、參加宴會、觀看電影、出席典禮等。另一種屬於事物信函，一般是邀請參加會議、學術活動等等。下面就讓小編爲大家詳解一下吧。
格式：1、稱謂;2、開頭：向被邀請人簡單問候;3、交代時間、地點和活動內容、邀請原因等;4、參加活動的細節安排;5、聯繫人、電話、地址、落款、日期。
寫作“三步走”：
邀請對方參加的活動的內容、時間和地點→與該活動有關的注意事項→期待對方接受邀請，並可表示感謝。
注意：
語言上寫給朋友，可選用活潑、真誠的言辭;寫給長輩、上級、名人等，語言則應正式、禮貌。
範文解析：
Directions: The Dean of the English Department knows that Prof. Robin is a famous scholar in British literature. As his assistant, you are asked to write a formal letter to Prof. Robin, inviting him for a short-term visit and to give a lecture.
Write the letter with no less than 100 words. Do not sign your own name at the end of the letter. Use “Wang Hua (Dean of the English Department)” instead. Do not write the address.
Dear Prof. Robin,
I am writing on behalf of the English Department to invite you to give a lecture in our college.
We know that you are an expert on British literature. We would be very grateful of you could give a lecture on “Contemporary British Literature” to the English Department on Sunday, April 8. If this subject does not suit you, any other similar topic would be welcome as well.
If it is convenient for you, would you please drop me a line to let me know whether you can come or not? We could be looking forward to the opportunity to benefit from your experience and wisdom.
Dean of the English Department
◆常用句式：
1、I am writing to invite you to…
我寫信是爲了邀請您……
2、I think it would be a great idea if you could participate in…
如果您參加……那就太好了。
3、I wonder if you can come…
我想知道您是否能來……
4、How would you like to join us in…?
您想不想來參加我們的……?
5、Would you please drop me a line to let me know if you can come to
您可以寫信告訴我您能否來……嗎?
6、My family and I would feel much honored if you could come.
如果您能來，我們全家將不勝榮幸。
7、I really hope you can make it.
我真心希望您能來。
8、We would be looking forward to your coming.
我們期待着您的到來。
9、I would like to meet you there and please let me know your decision soon.
我希望能在那裏見到您，請早點告訴我您的決定。
10、We would be very glad to invite you as an expert to our university/college to…
很高興邀請您作爲專家到我們學校……
