A clothes treating apparatus, comprising: a drum configured to accommodate an object to be dried; a linear valve configured to linearly adjust the amount of supplied gas; a burner configured to burn gas supplied by the linear valve; a hot air supply device (7a, 8) configured to supply hot air heated by the burner into the drum; a temperature sensor configured to measure the temperature of air exhausted from the drum characterized by a control means configured to adjust the amount of gas supplied to the burner based on a temperature measured by the temperature sensor and the selected drying course; a course selection means provided in a manipulation panel to select one of two drying courses, wherein the one of two drying courses is a rapid course for shortening the drying time, and the other of two drying courses is a saving course for reducing the gas consumption amount, and wherein the control means partitions a drying process into a plurality of sections based on a temperature change of the exhaust air, and varies a gas supply amount for each section based on the selected drying course, wherein the plurality of sections are partitioned to comprise: a first heating section that occurs at a beginning of the drying process to have a relatively high temperature increase rate; an evaporation section that occurs subsequent to the first heating section to have a relatively low temperature increase rate; and a second heating section that occurs subsequent to the evaporation section to have a relatively high temperature increase rate, wherein a gas supply amount during the first heating section is greater than that during the evaporation section when the selected drying course is the rapid course, and a gas supply amount during the second heating section is less than that during the evaporation section when the selected drying course is the saving course. a drum configured to accommodate an object to be dried; a linear valve configured to linearly adjust the amount of supplied gas; a burner configured to burn gas supplied by the linear valve; a hot air supply device (7a, 8) configured to supply hot air heated by the burner into the drum; a temperature sensor configured to measure the temperature of air exhausted from the drum characterized by a control means configured to adjust the amount of gas supplied to the burner based on a temperature measured by the temperature sensor and the selected drying course; a course selection means provided in a manipulation panel to select one of two drying courses, wherein the one of two drying courses is a rapid course for shortening the drying time, and the other of two drying courses is a saving course for reducing the gas consumption amount, and wherein the control means partitions a drying process into a plurality of sections based on a temperature change of the exhaust air, and varies a gas supply amount for each section based on the selected drying course, wherein the plurality of sections are partitioned to comprise: a first heating section that occurs at a beginning of the drying process to have a relatively high temperature increase rate; an evaporation section that occurs subsequent to the first heating section to have a relatively low temperature increase rate; and a second heating section that occurs subsequent to the evaporation section to have a relatively high temperature increase rate, a first heating section that occurs at a beginning of the drying process to have a relatively high temperature increase rate; an evaporation section that occurs subsequent to the first heating section to have a relatively low temperature increase rate; and a second heating section that occurs subsequent to the evaporation section to have a relatively high temperature increase rate, wherein a gas supply amount during the first heating section is greater than that during the evaporation section when the selected drying course is the rapid course, and a gas supply amount during the second heating section is less than that during the evaporation section when the selected drying course is the saving course.