A vehicle door latch device comprising: an operation handle that is supported by a handle base provided in a door ; a door latch mechanism that maintains said door in a closed state; a Bowden cable including an outer cable that is fixed at one end to said handle base and at the other end to said door latch mechanism , and an inner cable that is inserted into said outer cable while being coupled at one end to said operation handle and at the other end to a release lever of said door latch mechanism ; and an elastic cap that has a cover portion in a cylindrical shape, extending in a movement direction of said inner cable to cover said inner cable extending from the one end of said outer cable , wherein said elastic cap includes an annular first projecting portion that is always in close contact with a part of said inner cable throughout its whole circumference in a circumferential direction, said annular first projecting portion is provided below said cover portion , and said elastic cap is filled with grease , wherein the Bowden cable includes an end cap fixed to the outer cable , wherein the end cap has an annular groove formed in an outer periphery of an upper end portion of the end cap ; and the elastic cap has a fitting portion fixed to the end cap and the cover portion is formed on an upper side of the fitting portion , wherein the cover portion has a smaller diameter than the fitting portion , wherein the elastic cap includes a second annular projecting portion formed on an inner peripheral surface of the fitting portion , wherein the first annular projecting portion fixes the elastic cap to the end cap by being fitted onto the annular groove , and wherein the grease is put in a space formed between the fitting portion and the upper end of the end cap , and the inner cable passes through the grease in the space. an operation handle that is supported by a handle base provided in a door ; a door latch mechanism that maintains said door in a closed state; a Bowden cable including an outer cable that is fixed at one end to said handle base and at the other end to said door latch mechanism , and an inner cable that is inserted into said outer cable while being coupled at one end to said operation handle and at the other end to a release lever of said door latch mechanism ; and an elastic cap that has a cover portion in a cylindrical shape, extending in a movement direction of said inner cable to cover said inner cable extending from the one end of said outer cable , wherein said elastic cap includes an annular first projecting portion that is always in close contact with a part of said inner cable throughout its whole circumference in a circumferential direction, said annular first projecting portion is provided below said cover portion , and said elastic cap is filled with grease , wherein the Bowden cable includes an end cap fixed to the outer cable , wherein the end cap has an annular groove formed in an outer periphery of an upper end portion of the end cap ; and the elastic cap has a fitting portion fixed to the end cap and the cover portion is formed on an upper side of the fitting portion , wherein the cover portion has a smaller diameter than the fitting portion , wherein the elastic cap includes a second annular projecting portion formed on an inner peripheral surface of the fitting portion , wherein the first annular projecting portion fixes the elastic cap to the end cap by being fitted onto the annular groove , and wherein the grease is put in a space formed between the fitting portion and the upper end of the end cap , and the inner cable passes through the grease in the space. <EOS>