受益人证明书是一种由受益人自己出具的书面证明，以证明自己履行了信用证规定的条款，如证明所交的货物的`品质、证明运输包装处理，证明按要求寄单等。
受益人证明样本如下：
长城贸易有限公司
GREAT WALL TRADING CO.,LTD.
Room 123 HUASHENG BUILDING NINGBO A
TEL: 010-12345678 FAX: 010-87654321
受益人证明
BENEFICIARY’S CERTIFICATE
TO: 收货人的信息 INVOICE No..: 发票编号
S/C No..: 销售确认书编号
L/C No.:信用证编号
Dear Sirs:
We hereby that one set of non-negotiable shipping documents together with the original from A have been sent to the applicant by airmail within 48 hours after the shipment.
GREAT WALL TRADING CO.,LTD
张三