diff --git a/modifyDtsi.py b/modifyDtsi.py
new file mode 100755
index 0000000000000000000000000000000000000000..5551e1bab8bde6a2dc12036d1973eac27f225a48
--- /dev/null
+++ b/modifyDtsi.py
@@ -0,0 +1,89 @@
+from ast import Delete
+import sys, os
+
+class Modify():
+    def __init__(self, filePath) -> None:
+        self.filePath = filePath
+        self.lines = []
+
+        fp = open(self.filePath, 'r')
+        for line in fp:
+            self.lines.append(line)
+        fp.close()
+
+    def saveAndClose(self):
+        s = ''.join(self.lines)
+        self.lines.clear()
+        fp = open(self.filePath, 'w')
+        fp.write(s)
+        fp.close()
+    
+    def positionSearch(self, positionText, startLineNum = 0):
+        linesLen = len(self.lines)
+        for lineNum in range(startLineNum + 1, linesLen):
+            if(positionText in self.lines[lineNum]):
+                return lineNum
+        return -1
+
+    def addItem(self, newText, positionInedx, rowNume):
+        assert rowNume >= 0,"rowNum含义为“要将newText添加到positionSearch所定位的条目下的第几行”，可以等于0及添加到当前行，将当前行往下挤，但不可以为负数，如需要在positionSearch所定位的条目上方添加复数行，请按顺序调用addItem函数，且rowNum都填入0"
+        item = ''
+        if("is not set" in newText):
+            item = newText[2:-11]
+        else:
+            item = newText[:-2]
+
+        # 如果要添加的内容已经存在则直接返回
+        for line in self.lines:
+            if(item in line):
+                if ((item + "=y" in line) or (item + " is not set" in line)):
+                    print("Already has this item: " + item)
+                    return
+
+        assert positionInedx >= 0, "If want to add an item, first 'positionInedx' must be >= 0"
+        lineNum = positionInedx + rowNume
+        self.lines.insert(lineNum, newText+'\n')
+        if(rowNume <= 0):
+            positionInedx += 1
+        print("Add item: "+item)
+
+    def deleteLines(self, startLineIndex, endLineIndex):
+        for i in range(endLineIndex - startLineIndex):
+            self.lines.pop(startLineIndex)
+
+
+if __name__ == "__main__":
+    path = sys.argv[1]
+    modify = Modify(path)
+    print("Start to modifying file", sys.argv[1])
+
+    test = ['		compatible = "rockchip, rk3568-mali", "arm,mali-bifrost";',
+            '		reg = <0x0 0xfde60000 0x0 0x20000>;',
+            '',
+            '		interrupts = <GIC_SPI 40 IRQ_TYPE_LEVEL_HIGH>,',
+            '				<GIC_SPI 41 IRQ_TYPE_LEVEL_HIGH>,',
+            '				<GIC_SPI 39 IRQ_TYPE_LEVEL_HIGH>;',
+            '		interrupt-names = "job", "mmu", "gpu";',
+            '		clocks = <&scmi_clk 1>, <&cru CLK_GPU>;',
+            '		clock-names = "core", "bus";',
+            '		operating-points-v2 = <&gpu_opp_table>;',
+            '',
+            '		#cooling-cells = <2>;',
+            '		power-domains = <&power RK3568_PD_GPU>;',
+            '		status = "disabled";']
+
+    if(modify.positionSearch("gpu_power_model: power-model",0) == -1):
+        print("rk3568.dtsi arealy modified")
+        exit()
+
+    positionInedx1 = modify.positionSearch("gpu: gpu@fde60000",0)
+    if(positionInedx1 >= 0):
+        positionInedx2 = modify.positionSearch("};",positionInedx1)
+        modify.deleteLines(positionInedx1 + 1, positionInedx2 + 1)
+
+        for i in range(len(test)):
+            modify.addItem(test[i], positionInedx1, i + 1)
+    
+    modify.saveAndClose()
+
+    print("Succese")
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