An apparatus for evaluating a vascular endothelial function, the apparatus comprising: a cuff, to be wound around a part of a body of a subject; a cuff pressure controller, configured to control a pressure of the cuff during a first pressurization period in which the cuff is pressurized and depressurized for performing first pulse wave measurement, configured to control the pressure of the cuff and apply continuous pressure stimulation during a continuous pressure stimulation period, and configured to control the pressure of the cuff during a second pressurization period in which the cuff is pressurized and depressurized for performing second pulse wave measurement; a cuff pressure detector, configured to detect the pressure of the cuff from output of a pressure sensor connected to the cuff; a pulse wave detector, configured to detect, from the output of the pressure sensor, first pulse waves during the first pressurization period before the continuous pressure stimulation during the continuous pressure stimulation period is applied and second pulse waves during the second pressurization period after the continuous pressure stimulation during the continuous pressure stimulation period is applied; and an analyzer, configured to evaluate the vascular endothelial function by comparing the first pulse waves and the second pulse waves, wherein the cuff pressure controller is configured to, perform, at least one time, pressurizing processing that includes a first process and a second process subsequent to the first process, both in the first pressurization period and second pressurization period, the first process in which the pressure of the cuff is raised from a first pressure which is an atmosphere pressure to a second pressure which is equal to or higher than a maximal blood pressure of the subject, the second process in which the pressure of the cuff is lowered from the second pressure to a third pressure which is equal to or lower than a minimal blood pressure of the subject, and the analyzer is configured to apply statistical processing on variations of the first pulse waves and the second pulse waves, the statistical processing is processing in which an average value of a neighborhood of a maximum value in amplitudes of the first pulse waves and the second pulse waves is obtained. a cuff, to be wound around a part of a body of a subject; a cuff pressure controller, configured to control a pressure of the cuff during a first pressurization period in which the cuff is pressurized and depressurized for performing first pulse wave measurement, configured to control the pressure of the cuff and apply continuous pressure stimulation during a continuous pressure stimulation period, and configured to control the pressure of the cuff during a second pressurization period in which the cuff is pressurized and depressurized for performing second pulse wave measurement; a cuff pressure detector, configured to detect the pressure of the cuff from output of a pressure sensor connected to the cuff; a pulse wave detector, configured to detect, from the output of the pressure sensor, first pulse waves during the first pressurization period before the continuous pressure stimulation during the continuous pressure stimulation period is applied and second pulse waves during the second pressurization period after the continuous pressure stimulation during the continuous pressure stimulation period is applied; and an analyzer, configured to evaluate the vascular endothelial function by comparing the first pulse waves and the second pulse waves, wherein the cuff pressure controller is configured to, perform, at least one time, pressurizing processing that includes a first process and a second process subsequent to the first process, both in the first pressurization period and second pressurization period, the first process in which the pressure of the cuff is raised from a first pressure which is an atmosphere pressure to a second pressure which is equal to or higher than a maximal blood pressure of the subject, the second process in which the pressure of the cuff is lowered from the second pressure to a third pressure which is equal to or lower than a minimal blood pressure of the subject, and the analyzer is configured to apply statistical processing on variations of the first pulse waves and the second pulse waves, the statistical processing is processing in which an average value of a neighborhood of a maximum value in amplitudes of the first pulse waves and the second pulse waves is obtained.