WOOD IS AN ENGINEERING MATERIAL WHICH HAS VARIOUS APPLICATIONS IN MARINE STRUCTURES. SO, MAINTENANCE AND INSTAURATION OF THIS MATERIAL IS OF HIGH IMPORTANCE. LIKE OTHER ENGINEERING MATERIALS, WOOD AS A PART OF MARINE STRUCTURE MAY BE DISPOSED TO VARIOUS DESTRUCTIVE FACTORS SUCH AS PHYSICAL, CHEMICAL, MECHANICAL AND BIOLOGICAL FACTORS WHICH CAUSE IN VARIOUS DESTRUCTIONS IN WOOD AND CONSEQUENTLY THE RESISTANCE OF WOOD DECREASES. THEREFORE, IDENTIFICATION OF DEFECTIVE WOODEN PARTS AND ESTIMATION OF THE REMAINING RESISTANCE IN ORDER TO PREVENT BREAKAGE AND PROPERTY DAMAGES IS OF HIGH IMPORTANCE. CONSIDERING THE ISSUE THAT ASSESSMENT AND TESTING THE MARINE STRUCTURE IS A FIELD ASSESSMENT, THE APPLIED METHODS SHOULD HAVE THE ABILITY OF APPLICABILITY IN FIELD ASSESSMENTS AND DON’T HARM THE ASSESSED PART. THE NONDESTRUCTIVE TESTING (NDT & E) HAVE THE BEFORE MENTIONED CHARACTERISTICS. GENERALLY, WITH ALL THE PROBLEMS AND COMPLICATIONS OF WOODEN MATERIALS, VARIOUS METHODS OF NONDESTRUCTIVE TESTING CAN BE USED IN ASSESSMENT OF WOODEN STRUCTURES. FOR TESTING AND ASSESSMENT OF WOODEN MARINE STRUCTURES, A SPECIAL KNOWLEDGE AND EQUIPMENT IS NEEDED WHICH THIS ARTICLE DISCUSSES THEM.