An injection molding machine comprising: a movable platen having a movable mold attached thereto; a driving source that moves the movable platen; a transmission mechanism that converts input from the driving source into output having a predetermined ratio and transmits the output to the movable platen; and a controller that is configured to control the driving source, wherein the controller is configured to control the driving source so that the movable platen moves at a predetermined acceleration in a preset acceleration pattern, wherein the acceleration pattern of the movable platen at the time of the mold closing is divided into at least six sections, - wherein in the first mold closing section, an acceleration of the movable platen is increased over time from time to time, - wherein in the second mold closing section, the positive acceleration of the movable platen is maintained from the time to time and is maintained within an allowable range, - wherein in the third mold closing section the acceleration of the movable platen is decreased over time and is changed from positive to negative, - wherein in the fourth mold closing section, the negative acceleration of the movable platen is maintained from the time to time and is maintained within an allowable range, - wherein in the fifth mold closing section, from the time to time, and in the sixth mold closing section, from the time to time, the acceleration of the movable platen is increased over time and is brought close to zero over time, and - wherein the inclination dA1/dt (>0) in the sixth mold closing section is smaller than the inclination dA1/dt (>0) in the fifth mold closing section. a movable platen having a movable mold attached thereto; a driving source that moves the movable platen; a transmission mechanism that converts input from the driving source into output having a predetermined ratio and transmits the output to the movable platen; and a controller that is configured to control the driving source, wherein the controller is configured to control the driving source so that the movable platen moves at a predetermined acceleration in a preset acceleration pattern, wherein the acceleration pattern of the movable platen at the time of the mold closing is divided into at least six sections, - wherein in the first mold closing section, an acceleration of the movable platen is increased over time from time to time, - wherein in the second mold closing section, the positive acceleration of the movable platen is maintained from the time to time and is maintained within an allowable range, - wherein in the third mold closing section the acceleration of the movable platen is decreased over time and is changed from positive to negative, - wherein in the fourth mold closing section, the negative acceleration of the movable platen is maintained from the time to time and is maintained within an allowable range, - wherein in the fifth mold closing section, from the time to time, and in the sixth mold closing section, from the time to time, the acceleration of the movable platen is increased over time and is brought close to zero over time, and - wherein the inclination dA1/dt (>0) in the sixth mold closing section is smaller than the inclination dA1/dt (>0) in the fifth mold closing section. - wherein in the first mold closing section, an acceleration of the movable platen is increased over time from time to time, - wherein in the second mold closing section, the positive acceleration of the movable platen is maintained from the time to time and is maintained within an allowable range, - wherein in the third mold closing section the acceleration of the movable platen is decreased over time and is changed from positive to negative, - wherein in the fourth mold closing section, the negative acceleration of the movable platen is maintained from the time to time and is maintained within an allowable range, - wherein in the fifth mold closing section, from the time to time, and in the sixth mold closing section, from the time to time, the acceleration of the movable platen is increased over time and is brought close to zero over time, and - wherein the inclination dA1/dt (>0) in the sixth mold closing section is smaller than the inclination dA1/dt (>0) in the fifth mold closing section.