⑴ 求一个英文信范文：内容是请外国人发一封邀请函，以便我们办理签证。
最简略的表达如下，请参考。
Dear Sirs:
Would you please send me a formal invitation letter for Mr. xxxx, the president of XXX company, so that we can make our visa application for our attending the conference to be held in Australia.
His passport information are as follows:
Full Name Date of birth Passport No. Occupation
Thank your for your help.
Looking forward to your reply,
Sincerely yours
（不知道现在澳洲签证需要什么形式的邀请函，如传真，PDF版还是其它规定。这需要在信件中告诉对方）
⑵ 英文邀请函格式范文
这个我们经常写，就是办理签证用，都是用有公司信息的信纸写，页眉是公司LOGO,页脚是公司名字地址电话传真啥的，正文跟下面这样就行了，最后签字盖公章。
Dear Sir or Madam:
We are very pleased to invite Mr. ＊＊＊ come to our factory for visiting and business negotiation. The business trip will start from 18th April 2005 . And because the long business co-operation in future between ＊＊对方公司名 and us, they will come to China for many times.
Please note, however, that we don’t assume any legal or financial responsibility whatever regarding the presence of ****** in China. All expenses of ＊＊＊＊＊’Sjourney to/from China, their stay in China as well as health insurance will be borne by their employers.
We send you our kindest regards and best wishes for a pleasant trip.
Yours sincerely,
General Manager signatur
July 29, 2005
⑶ 英文邀请函的正确格式
英文邀请函一般正式的文体前面都不空格，且段落间是要空一行的。格式如下：
Dear sir/madam:
I'm delighted you have accepted our invitation to speak at the Conference in [city] on [date].
As we agreed, you'll be speaking on the topic "" from [time] to [time]. There will be an additional minutes for questions.
Would you please tell me what kind of audio-visual equipment you'll need. If you could let me know your specific requirements by [date], I'll have plenty of time to make sure that the hotel provides you with what you need.
Thank you again for agreeing to speak. I look forward to hearing from you.
Sincerely yours,
[name]
[title]
⑷ 英语作文的邀请信模板
邀请信的格式如下：
开头即表明邀请原因，邀请对方参加活动。邀请信中间要介绍活动的具体内容，强调活动的意义，表明参加这项活动的必要性，使得邀请成功。信的结尾，请期待对方尽早确定是否参与，并给自己回复。
正文
Dear Wangcai,
I am greatly honored to formally invite you to participate in Mr. Old Fish’s wedding ceremony with Ms. Fujiwora to be held at Beijing Grand Hotel from 8 to 10 p.m. on April 1, 2019.
As you are a close friend of us, we would very much like you to attend the celebration and share our joy. The occasion will start at seven o’clock in the evening, with the showing of their wedding ceremony.
This will be followed by a dinner party. At around ten, we will hold a small musical soiree, at which a band will perform some works by Bach and Strauss.
If you do not have any prior appointment on April 1, we look forward to the pleasure of your company.
Yours sincerely,
Li Ming
亲爱的王采：
我非常荣幸地正式邀请您参加2019年4月1日晚8点至10点在北京大酒店举行的老鱼先生与藤原爱女士的婚礼。
由于您是我们的好朋友，我们非常希望您能参加我们的庆祝活动并分享我们的喜悦。婚礼将在晚上七点开始，届时他们将举行婚礼。
接下来是一个晚宴。十点左右，我们将举行一个小型音乐晚会，由一个乐队演奏巴赫和施特劳斯的一些作品。如果您在4月1日没有任何预约，我们期待着您的光临。
李明