The present invention provides a sintered body with spacers, its production process and bonding method and a ceramic honeycomb filter, which enable to bond adjacent sintered bodies as they are aligned in the same direction at a time of forming a filter by bonding the sintered bodies and to carry out the bonding step automatically by a machine even if the sintered bodies have sintering deformation by e.g. sintering shrinkage. The sintered body with spacers comprises a sintered main body of column shape having both ends opening in a honeycomb shape and having a rectangular cross-section and spacers provided on side faces of the sintered main body, wherein the spacers are provided on at least two opposing side faces among four side faces of the sintered main body, and top faces of the spacers of the opposing side faces are parallel with each other. The sintered body with spacers is bonded with adjacent sintered body with spacers as the spacers are contact with each other.