<SEC-DOCUMENT>0000940394-18-001590-index.html : 20180921
<SEC-HEADER>0000940394-18-001590.hdr.sgml : 20180921
<ACCEPTANCE-DATETIME>20180921095049
ACCESSION NUMBER:		0000940394-18-001590
CONFORMED SUBMISSION TYPE:	497
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20180921
DATE AS OF CHANGE:		20180921
EFFECTIVENESS DATE:		20180921

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			EATON VANCE SENIOR FLOATING RATE TRUST
		CENTRAL INDEX KEY:			0001258623
		IRS NUMBER:				000000000

	FILING VALUES:
		FORM TYPE:		497
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-207589
		FILM NUMBER:		181080689

	BUSINESS ADDRESS:	
		STREET 1:		TWO INTERNATIONAL PLACE
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02110
		BUSINESS PHONE:		617-482-8260

	MAIL ADDRESS:	
		STREET 1:		TWO INTERNATIONAL PLACE
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02110

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	EATON VANCE SENIOR FLOATING RATE FUND
		DATE OF NAME CHANGE:	20030806
</SEC-HEADER>
<DOCUMENT>
<TYPE>497
<SEQUENCE>1
<FILENAME>efrsaisupp.htm
<DESCRIPTION>EATON VANCE SENIOR FLOATING-RATE TRUST SAI SUPPLEMENT DTD 9-21-2018
<TEXT>
Document 1 - file: efrsaisupp.htm

</DOCUMENT>
</SEC-DOCUMENT>