按你说的是聘用外国人来工作 。那应该是要给老外办理工签的吧 。
工签四个步骤：
1.去劳动局申请就业许可
2.去商务外事局申请工作邀请函
把1,2的材料寄给老外，让他在中国驻他们国家大使馆申请临时工签 。申请到后老外就可以进入中国 。
3，老外来到中国后再去劳动局给他申请就业证
4.去出入境申请一年的居留许可 。
如果你是北京公司，老外是非受限国家，比如欧美日韩等国家人 。可以让他先随便在境外申请个旅游签证进来 。申请旅游比较简单 。拿旅游签证进来后，可以在北京直接给他转工作签证的 。
232088我的QQ，希望以上对你有所帮助 。
5. 怎么给外国人发邀请函需提供什么材料方便其办签证来 上海伟达商务咨询有限公司专业的个人出国旅游签证、企业出国商务签证，外国人来华签证代办机构！供众多外国人签证加急服务，为您解决燃眉之急！
为你安排面试，我们代送代取签证可省时省力，并节省大量差旅费！
以下是我们为外国人签证延期提供的相关的咨询服务：
1 外国人的L转F（交有效护照，签证原件，外国人在华住宿登记证明原件，填写完整的申请表，2寸白底照片等）
2 外国人的L延期（交有效护照，签证原件，外国人在华住宿登记证明原件，填写完整的申请表，2寸白底照片，申请公函）
3 外国人F签证延期（交有效护照，签证原件，公司三证原件+复印件等）
4 外国人F签证邀请函（交有效的护照，公司三证，申请表格填写等）
5 外国人的工作签证Z新办，变更，延期（交有效的护照，公司三证，学历，申请表格填写等）
6港、澳、台同胞就业证 （新增、变更、延期、注销 ）
6. 怎么写邀请函给外国朋友 和你有关的部分：（因为你需要进行公证，公证处会有邀请函样本） Visa L： 申请人为家庭或者其它私人访问，要求有邀请人的中国配偶的婚姻证明. 访问其他中国亲戚的，要由中国国内亲属的邀请函，同时要由公证机关对这种亲属关系进行公证 。
如果是访问在中国学习或者工作的外国人，要有邀请人的签名邀请函，同时要有邀请人公司或者学校的证明信，并且有邀请人中国居民证的复印件 。上述文件可能要中国外交部确认 。
签证申请人的旅行费用需有证明 。注：申请L签证，用以观光旅游者将被拒签 。
只有5人或者5人以上旅游团通过旅行社方可 。附： 中国驻土耳其大使馆关于申请赴中国签证的说明： A Brief Introduction to Chinese Visa and the Procedure for Visa Application 2005/06/07 Chinese visa is a permit issued to a foreigner by the Chinese visa authorities for entry into, exit from or transit through the Chinese territory. The Chinese visa authorities may issue a diplomatic, courtesy, service or ordinary visa to a foreigner according to his identity, purpose of visit to China and passport type. Hereunder is an introduction to the ordinary visa and its application procedure. The ordinary visas consist of eight sub-categories, which are marked with letters (D, Z, X, F, L, G, C, J-1 and J-2 respectively).All foreigners who want to apply for above visas must follow the procedures listed below to apply for a visa and must present required documents: 1.Basic documentation and application Forms A. A passport valid for more than six months before expiration and at least one blank page in it. Note: For single or double entry visa application, passport must have at least six months validity. For multiple entry visa, passport must have at least nine months validity. B: Turkish Residence Permit for Foreigners valid for more than six months before the date that the holder is back to Turkey or departs for other destinations ( if the applicant is a citizen of the third country). C. One complete application form (The People's Republic of China Visa Application Form) with one recent passport-size photograph (black and white or color) glued thereto. Note: If the application form is not completely filled out, or the contents are not true, or it is not legible, procedure may be delayed or application may be denied. D: Copy of information pages of the passport and Residence Permit (if). 2.Various types of visas and their related documentation requirements Visa D: issued to an alien who is to reside permanently in China. A permanent residence confirmation form shall be required for the application of Visa D. The applicant shall apply to obtain this form himself or through his designated relatives in China from the exit-and-entry department of the public security bureau in the city or county where he applies to reside. Note: Entry time for Visa D is single. The holder of this visa is required to register and go through the procedures for obtaining the residence permit to local Government within thirty days of entry. Visa Z: Issued to an alien who comes to China for a post or employment in China, and to his or her dependents. To apply for a Visa Z, an Employment License of the People's Republic of China for Foreigners (which could be obtained by the employer in China from the provincial or municipal labor authorities), a visa notification letter/telegram issued by an authorized organization or company, and Physical Examination Record are required. Note: Entry time for Visa Z is single. The holder of this visa is required to register and go through the procedures for obtaining the residence permit to local Government within thirty days of entry. Visa X: Issued to an alien who comes to China for study, advanced studies or intern-practice for a period of six months or more. To apply for a Visa X, certificates from the accepting unit and the competent authority concerned are required, i.e., Application Form for Overseas Students to China (JW201 Form or JW202 Form), Admission Notice and Physical Examination Record for Foreigners. Note: Entry time for Visa X is single. The holder of this visa is required to register and go through the procedures for obtaining the residence permit to local Government within thirty days of entry. Visa F: Issued to an alien who is invited to China for a visit, an investigation, a study or lecture, business tour, for scientific-technological and cultural exchanges, for short-term refresher course or for job-training for a period of not more than six months. To apply for a Visa F, the invitation letter from the inviting unit or the visa notification letter from the Authorized Unit are required, together with an recommendation letter from the applicant's own company or institution signed by its general。