受益人证明书是一种由受益人自已出具的证明，以便证明自已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。

信用证中有关受益人证明书条款举例：

A、  COPY OF  LETTER FROM BENEFICIARY TO OUR APPLICANT EVIDENCING NON NEGOTIABLE B/L TOGETHER WITH COPY OF OTHER DOCUMENTS WERE SENT DIRECTLY TO THEM AFTER ONE DAYS FROM SHIPMENT DATE。

B、  A STATEMENT FROM THE BENEFICARY EVIDENCING THAT： PACKING EFFECTED IN 25KGS/CTN BOX。

C、  A CERTIFICATE FROM BENEFICIARY STATING THAT THE FOLLOWING DOCUMENTS HAVE BEEN SENT TO THE APPLICANT BY SPEED POST AFTER SHIPMENT EFFECTED：1、1/3 ORIGINAL BILL OF LADING；2、CERTIFICATE OF QUALITY ISSUED BY CCIB/CCIC IN DUPLICATE。