A method capable of analyzing a sample containing both glycosylated hemoglobin and glucose using an analysis chip, wherein the method comprises analyzing glycosylated hemoglobin, and analyzing glucose, and wherein the glycosylated hemoglobin is analyzed by a capillary electrophoresis method, the analysis chip comprising: a substrate (1,4), a plurality of fluid reservoirs (2a, 2b, 2c, 2d), a capillary channel for the capillary electrophoresis method (3x, 3y), and a glucose analysis reagent, the plurality of fluid reservoirs (2a, 2b, 2c, 2d) comprising a first introduction reservoir and a first recovery reservoir, the capillary channel (3x, 3y) comprising a capillary channel for sample analysis, the first introduction reservoir and the first recovery reservoir being formed in the substrate (1, 4), and the first introduction reservoir and the first recovery reservoir being in communication with each other via the capillary channel for sample analysis; wherein the analysis chip further comprises a pretreatment reservoir for hemolyzing and diluting the sample, the pretreatment reservoir being in communication with the first introduction reservoir, and wherein: A) the glucose analysis reagent is contained in the pretreatment reservoir; and/or B) the analysis chip further comprises a reagent reservoir, the glucose analysis reagent being contained in the reagent reservoir, the reagent reservoir being in communication with the first introduction reservoir via a channel that is independent of the capillary channel for sample analysis, or being in communication with the pretreatment reservoir, wherein the method includes: filling the capillary channels (3x, 3y) with an electrophoresis running buffer by pressure or capillary action; introducing the sample into the pretreatment reservoir and hemolizing and diluting said sample therein; analysing glucose of the sample by reacting the sample with the glucose reagent; moving the sample into the capillary channel for sample analysis; and analysing glycosylated haemoglobin of the sample by capillary electrophoresis. a substrate (1,4), a plurality of fluid reservoirs (2a, 2b, 2c, 2d), a capillary channel for the capillary electrophoresis method (3x, 3y), and a glucose analysis reagent, the plurality of fluid reservoirs (2a, 2b, 2c, 2d) comprising a first introduction reservoir and a first recovery reservoir, the capillary channel (3x, 3y) comprising a capillary channel for sample analysis, the first introduction reservoir and the first recovery reservoir being formed in the substrate (1, 4), and the first introduction reservoir and the first recovery reservoir being in communication with each other via the capillary channel for sample analysis; wherein the analysis chip further comprises a pretreatment reservoir for hemolyzing and diluting the sample, the pretreatment reservoir being in communication with the first introduction reservoir, and wherein: A) the glucose analysis reagent is contained in the pretreatment reservoir; and/or B) the analysis chip further comprises a reagent reservoir, the glucose analysis reagent being contained in the reagent reservoir, the reagent reservoir being in communication with the first introduction reservoir via a channel that is independent of the capillary channel for sample analysis, or being in communication with the pretreatment reservoir, A) the glucose analysis reagent is contained in the pretreatment reservoir; and/or B) the analysis chip further comprises a reagent reservoir, the glucose analysis reagent being contained in the reagent reservoir, the reagent reservoir being in communication with the first introduction reservoir via a channel that is independent of the capillary channel for sample analysis, or being in communication with the pretreatment reservoir, wherein the method includes: filling the capillary channels (3x, 3y) with an electrophoresis running buffer by pressure or capillary action; introducing the sample into the pretreatment reservoir and hemolizing and diluting said sample therein; analysing glucose of the sample by reacting the sample with the glucose reagent; moving the sample into the capillary channel for sample analysis; and analysing glycosylated haemoglobin of the sample by capillary electrophoresis. filling the capillary channels (3x, 3y) with an electrophoresis running buffer by pressure or capillary action; introducing the sample into the pretreatment reservoir and hemolizing and diluting said sample therein; analysing glucose of the sample by reacting the sample with the glucose reagent; moving the sample into the capillary channel for sample analysis; and analysing glycosylated haemoglobin of the sample by capillary electrophoresis.